Agree...it seems like a good deal, and if it fits one's needs, watt-wise and $-wise, it is. But using it to power an inefficient energy hog like a standard household fridge, even a compact dorm fridge, won't do.
For example, the Nova Kool R4500 (a DC model) uses 2.2 amps at 12 volts DC, which is (roughly) .22 amps at 120 volts AC (not counting losses due to inverter, wire, etc.). Crunch the numbers for household fridges and the difference is amazing.
(Other 12vdc fridge manufacturers are Waeco, Norcold, SunDanzer, and Zero).
So spend the $800 on a generator...or an efficient DC fridge, or more/better solar array &batteries, or....