Yeah, residential refrigerators are, in my opinion, a much better way to go than the typical LP fridges that are found in most RVs. Res-fridges cool down faster, they hold more (if you've got the room for a large one) they're less of a fire hazard, there's no open flame and you can run them while parked on a slope without damaging them.
As QZ said, however, if you boondock a lot (like us) you're going to have to beef up your battery bank and install an inverter if you don't already have one, or you'll be running your generator quite a bit. Our res-fridge and inverter are, by far, our biggest power consumers. We had to install a fairly sizable solar array, and increase the size of our battery bank by about 30% to keep up with the draw while boondocking.
Kev