My biggest concern would be that you'd have to rip your kitchen apart if it ever need to be serviced.
We could kind of circumvent that problem in our house because the basement staircase runs behind the wall where it would be placed. We could easily put in a removable panel that would allow access to the back of the fridge.
Also, it looks like it might be hard to clean.
We need a big fridge though. I cook a lot. Right now we have a fridge on a kind of back porch area and another in the garage and they're both usually pretty full. I would love to have one big fridge in the kitchen.
We'll probably end up with something like this:
It certainly looks easier to clean and to service but I don't like the idea near as well as I like a corner fridge idea.
I'm really surprised that they're so hard to find here. You would think that a short one that fit under the counter but still offered so much storage would be perfect for smaller kitchens.