We rented occasionally for several years before buying, and had a variety of makes and lengths from 24 ft. to 32 ft, with and without slide-outs but mainly with slide-outs. 26' seemed to be the best trade-off between room and handling, however 26' units typically have corner beds.
When we went to buy and found a 28' dual slide model with walk-around rear queen we went for that. After some time has gone by an interesting phenomena has taken place: the rv seems plenty roomy on the inside but looks increasingly small on the outside. I have stuffed it in some small mini-mall parking lots utilizing backing the overhang over curbs/landscaping. It feels more now like a 24’ when I was first driving class-Cs.
The max we drove was a 32' and seems to have more wind issues and tail swing but that was fairly early on and long before I was aware of suspension upgrades. Drove that 32' by accident through an old, narrow section of a Mt. Rainier campground and barely got around (dented a hubcap on a roadside rock, successfully popped out the dent) and then drove on down to Crater Lake.
Our unit can be fully utilized with slides in also as only a couple of lower drawers in the rear wardrobe are blocked by the rear slide. We have camped that way in ice and snow conditions to not have the slide awnings ice up.