B+ motorhomes

HI. This is my first post. I read the entire posting today. My husband and I have looked about 5 years for the perfect small motorhome and just purchased a 2003 Trail-Lite B+ 225 with a Ford V-10 Chassis. We have never even slept one night in a motorhome but are not totally ignorant, as we have some close friends who have full-timed it 2x and have given us good advice. We also bought from a very reputable dealer who has been in business 35+ years (actually 70+ years selling Fords). We were assured we could take this on w/o too much difficulty. We decided to buy new so we wouldn't have problems. Now, I'm wondering if we did the right thing. We go April 11th to pick up our RV and we have a half day training session at the dealer's. We go through the RV with an inventory check list. Does anyone have any advice to offer us before we drive it away (specific questions for the dealer, certain things to make sure and check)? Thanks. Judy