Size matters on how you wish to use it. We are not SP or NP type people so for us the larger floor plan was more important. At 36' long and 13' tall I basically stick to approved truck routes (drive it like my semi) and stay in commercial CGs. We don't consider ourselves to be campers. We RV, ie we take our lodging with us while we travel and visit. Once you determine how you want to use it the rest will fall in place. As for driving the rig. With the right truck/setup there is little difference in 4' of difference at these lengths. Might mean and extra pull up but as with semis 48' vs 53' is a little extra swing of the butt to watch for.