Product review (5 stars): Very satisfied since unit was serviced
(See service updates at end of review, as well as the comments for a complete picture)

Mar 2018 Update:  No changes since last update--still works and looks brand new with not a scratch.  I am always worried we are going to crack the glass since we use very heavy enameled cast iron a lot, and once the spouse dropped it after grabbing it while hot, but it survived.

Jan 2017 Update:  Operation has been flawless since service last summer.  No scratches--still looks brand new because it is so easy to clean.  Very fast to get cookware up to temperature or boil water.  Sad to see others reviewers still having issues.  I would hate to have to go back to gas if this actually were to fail out of warranty.  For now, upgrading back to 5 stars based on months of excellent performance.

Original review:
If Dynamic Deals is selling this for several hundred less than the going rate, it is a great deal (even cheaper today than when I bought it).  If concerned about the warranty, just buy an extended warranty and you'll be better off than paying the full price while depending solely on the one year GE warranty.  Mine arrived in new and flawless condition, and all the features work.  Since I have had mine serviced already by GE, you can factor that into your calculus about where to buy this, since there is that other reviewer who didn't want to buy from a non authorized dealer.

In case you didn't know, this particular model is the Consumer Reports #1 rated induction cooktop.  In their brand reliability survey, GE is only second to Kenmore, on par with Whirlpool, but has half the reported problems as the worst (KitchenAid).  And if you haven't been paying attention to the financial news, it is not exactly a smart move to be investing in anything (Kenmore) associated with the Sears brand these days, given the death watch that company is on.

Fast boiling, completely flush surface with no knobs to trap grease, griddle burner sync feature, much cooler in the kitchen in contrast to an open gas flame, beautiful gray color looks much better on a white countertop than a black surface.  (If looks are important, the last reason is a no brainer).  The obvious downsides are that you may not want to just drop a heavy pot onto the glass counter, like you can easily do with a gas cooktop.  And maybe not all your cookware will work.  A large non-induction Cuisinart skillet didn't work, and all the Lodge cast iron pans have been retired to prevent scratching of the glass.  Below is a list of induction capable pans we have used successfully on this.  The 12" Cuisinart fryer is great for maximizing the real estate of the larger burner, though it is definitely heavy, so I wouldn't recommend to someone who can't handle the weight, since the surface is some kind of glass:

<a data-hook="product-link-linked" class="a-link-normal" href="/Cooks-Standard-Multi-Ply-Clad-Stainless-Steel-10-Piece-Cookware-Set/dp/B00421AYJK/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Cooks Standard Multi-Ply Clad Stainless-Steel 10-Piece Cookware Set</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/Cuisinart-CI45-30CR-Chef-s-Classic-Enameled-Cast-Iron-12-Inch-Chicken-Fryer-with-Cover-Cardinal-Red/dp/B001V9K6LC/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Cuisinart CI45-30CR Chef's Classic Enameled Cast Iron 12-Inch Chicken Fryer with Cover, Cardinal Red</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/La-Cuisine-Cast-Iron-Skillet-with-Integrated-Cast-Iron-Handles-and-Enamel-Finish-Red-10-34/dp/B00VLPCVSM/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">La Cuisine Cast Iron Skillet with Integrated Cast Iron Handles and Enamel Finish, Red, 10"</a>

Another downside is that this cannot be flush mounted with the counter--the beveled edge is supposed to lie on top of the counter, although it does have a very low profile which almost appears flush from a distance.  If you want a true flush mount, apparently you need to upgrade to the GE Monogram line, which means spending even more, so you'd have to evaluate if that is worth the extra dollars.  Also, I was a little disappointed that the built in timer does not sync with the burners, so it doesn't appear that you can turn off the cooktop using the timer, like you can with an oven.  If replacing a gas appliance, you may need to hire an electrician to run a 220V circuit, which will further add to the hidden cost of this.  There is a youtube video that shows how to shut off a gas line, but basically you can get yellow teflon tape (yellow is rated for gas, unlike the common white tape) and a cap from HD.  That tape requires four wraps if I recall, but you'll want to read the instructions on the tape.

Electric is probably more expensive than gas or propane to operate, but it's much cooler and easier to clean, so you'll have to justify any extra operating expenses with those benefits.  (If you can afford this, you probably shouldn't mind paying an extra few dollars a month to operate it). It comes with a sample size of cleaner, which is very effective at getting off the residue that builds over the burners.  It is pricey on amazon, so I'll have to shop for these locally to compare pricing.  But it really only takes a drop to clean each burner, so it should be quite long lasting.

<a data-hook="product-link-linked" class="a-link-normal" href="/Best-Value-Kit-Ceramic-Cooktop-Cleaner-28oz-Scraper-11-Pads/dp/B01KCCP6C2/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Best Value Kit: Ceramic Cooktop Cleaner 28oz Scraper 11 Pads ...</a>
<a data-hook="product-link-linked" class="a-link-normal" href="/Cerama-Bryte-GVI209282W-Cerama-Bryte-Ceramic-Cooktop-Cleaner-28-Oz/dp/B01CO2LA6O/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Cerama Bryte GVI209282W Cerama Bryte Ceramic Cooktop Cleaner 28 Oz</a>

July 2016 update: After having a number of instances of the burners turning off in the midst of cooking, I had to call GE support.  (This was installed in May 2016).  The problem was intermittent and apparently due to too much heat for it to handle, though if you can't cook food normally without worrying about overheating, that makes this not so useful as a cooktop.  The correct GE number to call is the answer line, and not the repair line.  The first rep tried to tell me that a cast iron pan may not be ideal for this!  Really?  They seem quick to blame pans for issues, probably because too many people are using either incorrect or inferior cookware.  The next rep finally understood the nature of the problem after I described the symptoms and dispatched a GE tech and attached a diagnostic tool to the cooktop underneath and discovered some codes suggesting the visible cooktop and its electronics needs to be replaced.  Similar to an OBD port in a car, with fault codes and recent history of uses, so fortunately he didn't have to rely on just my explanation.  I had captured a video of boiling water to demonstrate the problem, and unfortunately he tried to convince me that boiling water for more than a few minutes was not a reasonable use of the cooktop.  Guess that rules out hard boiled eggs!  I had to reiterate that the problem extended well beyond boiling water, and later that it applied to multiple burners.  I found you need to be very clear and succinct with the problem description, because too much information was not really processed well.  (Also, if you boil water and evaporate all the water, it makes sense that overheat protection will kick in and shut down the burner, which is a nice feature you don't get with gas).

Anyway, the replacement cooktop surface was broken in transit, so a new one was ordered.  For now am wondering if this was a good purchase, but at least their support is on top of the issue.  Fortunately, it is covered by a one year GE warranty and a Squaretrade warranty too.  If you register on the GE website, you'll soon get hammered with email offers for an Assurant warranty, which is quite comparable if not better than the Squaretrade warranty since you can get an extra year for a small uplift in cost.  Either way, I'd definitely budget an extended warranty into your purchase cost.  And be sure to register your product with GE, in case you do need service.

August 2016 update:  Backordered parts arrived and the service tech returned on schedule.  Unlike that other reviewer's experience with their service tech, I have no issues with three separate appointments--he is quite reliable and honest when he can't answer a question.  (Four appointments actually, but one was rescheduled due to sickness, but I was notified by the call center).  My initial impression is that the overheating problem was fixed, as I just boiled water for an hour on two burners to test it.  The problem seems to have been with an electronic module.  Perhaps it was the cooktop surface itself, since that was replaced too.  But since the problem was somewhat intermittent, I'll need another few weeks of cooking to confirm the problem has been fixed.  Hopefully, it is not a problem that develops with use, because I don't recall if this ever had a problem within the first month of ownership.  If the problem recurs, I'll update this review again.

Sept update:  No issues thus far.  Interesting to read Lisa's review with the same shutdown problem, so it appears there is a defective batch of product still in the pipeline.  Hopefully, my replacement parts will continue to hold up over time.  I guess I will downgrade to four stars due to the lingering concern for now, and lack of confidence after hearing of others with serious issues.  But as of right now, it works excellent, and the gray is really an awesome looking color for a cooktop.