We have a 7.5 cubic foot Nova Kool refrigerator/freezer (RF7500) and could not be happier. Purchased from Backwoods Solar, http://www.backwoodssolar.com/
who had the best price at the time.
Note that, while the Danfoss compressor will run on either 12 or 24 volt systems, the 7500 model also has a compartment light in the fridge, so you must specify your voltage. (The light is just a Truck-Lite license lamp, though, so easy to change or replace with LED model).
I think the current model number is RFS7501-DC.