Product review (4 stars): A decent fridge so far, with caveats
Important note before I start my review: check the label on your refrigerator that is on the top inside right of the fridge.  If the manufacture date is between June and Dec 2014, the fridge has an issue with the defroster that needs to be fixed (needs to have a new motherboard or a flash update of the software on it.  FYI, you will have to empty the shelf area on the repair day as all the shelves need to come out).  You can remove the large bottom drawer and look underneath, if you see ice buildup then you probably have this issue (assuming it's not due to something else).

OK onto the review.  Just remodeled the kitchen and was wanting to get the biggest refrigerator I could find.  This one is one of the larger fridges out there, and the installers had to remove the doors to get it to fit through the front door.  Bought in early Jan 2015, upgraded from a side by side that I bought in 1991.

Took some getting used to the new setup, especially the freezer, but so far the french door type arrangement is growing on me.  You can fit quite a few things in this fridge and freezer once you get the shelves adjusted correctly, with a few exceptions (noted in cons).

The biggest shock to me was how little you can store in the door area.  On the side by side I had a lot of things in the door, on this thing some of the door storage is a joke, it can barely hold anything at all.

The door in door is alright.  I don't think it will be something I ever get again if/when I get another fridge.

I haven't tried their smart phone app yet to see if it's something worth having.  It sounds like you have to connect it to wi-fi to use the app which I don't really want to do, I'd rather just use bluetooth to communicate with the fridge.  Not that I don't trust LG (well maybe kinda don't trust), but giving the fridge access to the internet or outside internet access to the fridge doesn't appeal to me.

Pros:
Lots of light.  Very easy to spot things.  LED lighting too so should last a very long time.

For the most part it's very quiet when it's running.  My old fridge was freight train loud by comparison.  However it does make some loud noises from time to time (see cons).

It does seem to use less electricity compared to old fridge.  I noticed my electric bill went down about $10 the first month.  I'll have to get on the SCE website and see if I really am using less electricity than I did a year ago.

I like the water dispenser, can put large containers there with no problem and refill water bottles easily as well.  It has an LED light that comes on too so you can see what you are filling.  It gives you about a second where the light comes on before the water starts coming out, so if you are refilling a water bottle at night you can line it up better if you are quick.

Cons:
At first it was extremely quiet for a few months, and then it started making some *very* loud popping/banging noises all the time.  I was very concerned about this, web searching trying to find the answer and the only one is it's the defrost heater... I'm just hoping if it's something wrong that it will break before the warranty expires.  Maybe it's due to the defrost issue and the ice buildup that was in the fridge, just got that fixed today (10/10/15) so we'll see how it goes.

The ice maker capacity is fairly small.  You won't be having any good sized parties depending only on this thing.

LG customer support stinks.  I got a letter from LG via Costco in March saying there is a problem that needs to be addressed  (ice buildup behind the crisper in fresh food area - the issue I mentioned at top of my review, that's how I know the date range), I called them about it and they gave me the run around even after sending them a copy of the letter and never heard back from them.  I was very displeased how defensive they became about the whole scenario, completely denying there was any issue with the fridge that would cause them to send a letter out.  My wife did finally notice there was ice/water on inside bottom of the fridge under the large bottom drawer (there was almost a 1/4" ice layer) so when I called back again 6 months later they finally sent someone out to look at it and sure enough it was due to the defrost issue, and it turns out it is an issue they are fully aware of!

As someone else noted, there is very little storage for 2 quart or gallon sized type containers in this fridge.  I've re-arranged the shelves a few times (without sacrificing storage for other items) but can't seem to make it work to store more than a few.  I think the folding/sliding shelf is going to have to go.  That's too bad, because had they done a better job on the door storage that wouldn't need to happen.

The OEM water filters are very expensive.  You can find aftermarket filters for this by other manufacturers, I'm getting ready to try one out here soon will update my review later.  Either that or I may put the bypass back in and switch back to the external water filters my old fridge used, they were only $10 and worked great.

Attached a picture of my shelf layout, works good for me maybe it will for you too.  I put the sliding/folder shelf on the top right.  I kept the shelves even with each other as if they are not at same level can't help but imagine something falling off and cracking the glass on the shelf below.  If that doesn't bother you then you could raise/lower the shelves to fix the lack of quart/gallon container storage.

Update 6/25/16:  So far the loud popping/banging noises have not returned.  It must have been the ice buildup, when the defroster would kick in it was the sound of the ice breaking up.  There was a LOT of ice there, it took the tech a long time to get rid of it with his heat/steam gun.

One bad thing with the shelf layout I showed in the picture is the top left shelf will have to be removed to change the water filter.

I tried the WLF-01 water filter and so far not impressed.  Bought a 2 pack, the first one started giving out about 2 months later, the water started tasting weird.  The only thing that happened was we went on a 2 week vacation, it was fine before we left but when we got back noticed the bad taste and it never got better after 3 weeks of using it.  Swapped in the second filter today and will see how it goes.

The white paint on the glass on the "Glide N' Access" shelf is cheap.  We spilled some cranberry juice on it and didn't notice it till an hour or so later, when we wiped it off the paint came right off.

Update 4/23/17: Fridge is still working well.  I switched back to factory water filters (good prices on Amazon) and all seems good now.

One issue that happened with us, my wife accidentally had something sticking up in the freezer that didn't allow the door to close all the way, it left a little under a 1/8" gap all around the seal.  The door open sensor didn't detect it and it was open like that all night long.  The next morning got something out and noticed the food in the top drawer was thawing out, found the problem and closed it back up.  It did eventually freeze things again but then a few days later noticed food was thawing out again.  Looked in the back and noticed the air vents were covered with ice.

Unplugged it and took off the front freezer door and removed the drawers (instructions are in the owners manual).  On the left side there is a drawer guide you can remove.  The back cover simply pulls off, I started on the top left side.  Unplug a couple plugs and you can remove the cover.  The evaporator was about 1/3 covered in ice, used a heat gun to melt the ice on the evaporator and a hair dryer to dry out the cover.  Plugged it all back in and it works great again.

I guess you could simply open it up and let it thaw out if you wanted but I didn't want the food to unfreeze any more than it had as that may have taken hours.