The cooling is all done by the freezer shelf, which must be gently bent down and back by hand.
I did this with my first mini-fridge. I think I bought it for $40. Worked well, but the thermostat or something failed on me eventually. It would cool, but not consistently. Junked it, picked up a used 4912 for $100 and it's been working great for years.
My only problem is I think the kids mess with it (just the fridge, not the beer) and leave the door cracked open. At least I think it's the kids. Every now and then I need to shut it down and defrost it because it's been cracked open overnight. Pure operator error and not an inherent flaw in the fridge.
If I get another it will be a full-size over/under job so I have freezer space for hops and plenty of storage for kegs, bottles, etc.