Renting a Class B RV can vary in cost, with prices typically ranging from $200 to $350 per night, depending on the RV's make, model, and age. Fuel efficiency will vary, but you can generally expect between 18 and 25 miles per gallon. As for operating the RV, your RVezy host will walk you through the basic operations, such as managing the black (waste) and gray (sink and shower water) tanks, using any slideouts, and operating the generator. When renting a Class B RV, consider factors such as storage space, sleeping arrangements, and the availability of onboard amenities, such as a bathroom and kitchen, to ensure it meets your travel needs.