You've gotten plenty of good advice here already. I don't think you'll have any problems if you approach things with due caution and care, which seems to be what you're doing.
Besides the other things mentioned, do keep in mind the tail swing as you'll (probably) have a lot of vehicle behind the back axle. On a sharp turn, the back of the motorhome will swing out a good bit to the other side--possibly a few feet beyond its starting point. This can be problematic in parking lots, gas stations, etc. if you don't pay attention to your mirrors. (Pay attention to both mirrors, of course; paying attention only to the tail swing is a recipe for driving into something on the other side in close quarters.)