We had a Keystone Fuzion 310 5th wheeler that we full timed in for a year. We liked the separate "garage" area that could be closed off from the living quarters so you don't have to unload in bad weather and still use the living area, two slideouts, full kitchen and 3pc bath, 5500W Onan generator, two A/Cs., power leveling jacks. Garage was ~8x10, enough for one Spyder plus two sport bikes.
Dislikes ..not much. We found that MOST trailers, even fancy Class A motorhomes, have a build quality less than that of a normal home. Understandably to keep weight down, materials are thinner and flimsier. As you basically have a "house" bouncing down the road, things rattle loose and get out of alignment. Loctite, Gorilla Glue, and safety wire is your friend. Keep an assortment of spare screws and nuts, and convert all lighting to LED. If you travel anywhere that experiences freezing temps, make sure tanks are heated and insulated, and we found having a couple of small portable ceramic heaters to be a godsend; reducing propane use. Look inside storage compartments and under the chassis when shopping, you'll find exposed screwheads and panel gaps.
We pulled ours with a Ram 3500 Dually. We went with a 5th wheel because towing and backing was much easier than a bumper pull. Finding large enough sites and level pull throughs were a bit more challenging than simply pulling into any available campground; calling ahead is recommended.