Can't help with the Presidential but we have had a couple of residential fridges, if that is one of your concerns. The first was in our motorhome and now in our Excel. Both were Samsung RF197's which is what appears to be in mcumbie's new Winnie, and, by the way, is a very nice looking fifth wheel. The Samsung's are very efficient and will tolerate a modified sine wave inverter very well. We have a pure 1000w in ours with 2 6 volt batteries. It will run all day while we are on the road with very little drop in voltage. The advantage, having owned both types of fridges, is the consistent temps you get with a residential, at least in our experience. If you are a hard core dry camper it might be more of an issue. We have an automatic transfer switch so when we disconnect from shore power the inverter kicks in so fast that there is no loss of power. When we reconnect the switch changes back to shore power. I had to add that myself but it is a nice feature to have.
2013 Excel Winslow 34RKM
2015 GMC 3500 Denali Duramax 4X4 dually