Product review (3 stars): Good but problematic
I have this cooktop for 6 years (since 2009).  It looks good and blend into my black galaxy silestone contertop like the comand stations on Star Trek Next generation Enterprise.  Beside the look the cleanup is fantastic.  No matter what I do or spill on it I can just wipe it with a sponge and shine it and that's it.  No more scrubbing the gas cooktop for hours.

Functionally it works much better then my old radiant cooktop.  Heats up and cool down immediately. I never timed it but it boils water more than fast enough for me but my neighbor has a Bosch induction cooktop and I think it boils water even faster.  More then enough power to stir fry and cook cowboy steak with cast iron skillet.

For cookware don't bother with the fancy made for induction ones.  I bought a set for a few hundred bucks the first time but my favorite is a $20 stainless steel pan from Kroger and a $18 Cast Iron skillet for searing steak.  You do have to be careful with the cast iron cause it's heavy and this is a ceramic top.  Though I haven't scratched it yet.  As long as it's iron/steel with a very flat bottom with lots of contact for the induction field to work it'll work fine.  I do have to get rid of my Calphalon aluminum cookware and that's a shame. (After I got rid of my black Circulon set, the first set that has ridges inside that's hard to clean, and bought a new set of stainless Cuisinart I realized the heating is a lot faster with the new Cuisinart cookware.  Both have induction label on it and both cost about the same so not sure why the new set is quite a lot faster.  May be because the Circulon are painted black and has concentric rings on the bottom and the Cuisinart has completely flat stainless bottom.)

After 3 years of use (2012), I heard a pop and the whole thing died.  I did pay $200 to extend the warranty to 6 yrs so no added cost for me but it is a concern as I've never had any stove break on me with the old gas and radiant cooktops.  The repairman pretty much ordered the whole electronic assembly inside and that cost more then the cooktop at over $1600.  Good thing I have the warranty.  Not sure if I would buy GE again with the reliability issue.

Watching the repairman replacing the magnetic heating elements shows the largest element has most of the magnets along the outer edge and quite empty, a few magnets, in the middle.  That is why when using a small pan on the big element it actually heats slower than using the smaller elements.

Overall I am sold on the induction cooktop.  If you can afford the price the time saving alone on cooking and cleaning is worth it.

2 more years (2014) after the last complete gut replacement another board burnt out.  Free warranty repair.  I'm going to miss my warranty after it expire next year.  But the problem is not just GE, my neighbor's Bosch started smoking last year, about 3 years old, and he had to replace a board too.  I did notice with his cooktop the insulation on the element is much stronger and doesn't get damaged when you open the unit for repair.  With the profile cooktop the insulation is some sort of ceramic fabric material that has the durability of icing on cake.  Seriously you touch it and it's damaged.  One of the reason why the repairman had to replace all the elements last time.