My cousin has them and they are cool, and easy enough to use, but my cousin's kitchen is gigantic and also has a normal fridge. Mr. Cousin is a contractor, and their remodel was very well resourced. The only problem I noticed with them is that when there are a bunch of people hanging out in the kitchen, whoever is in front of the drawer has to move in order to get stuff out. Of course this is true of any fridge door.
Losing the window light would be a bummer.
I wish there were more smallish options for refrigerators in the US. Our choices are Gigantic, Big, and then Dorm Room. We'd be much better off with a smaller one that didn't invite us to keep so much mystery stuff pushed to the back.
Honoring our sprawling western US lifestyle, we also have a fridge in the garage where we keep beer and make ice in trays in the top freezer.
Each day is a gift, that's why it is called the present.