I've got the Alpicool C15, which is nearly identical to the C20. It just has a different lid. I've had it for a year and while it has a few minor quirks, on the whole I've been pretty happy with it.
I noticed that the 15 and 20 were both under $200 while looking up fridges for someone a bit ago. For a dweller that does not need a lot of space it $200 and $300 that are larger too.