we have a 28 ft winnebago B+, the 24 fts we know of leave a lot to be desired. Friend bought 1 (thor) and it basic construction was a mess. Paid a bunch and lost his butt when he traded for a used bounder. The bed had to be folded to close the slide, bathroom very small and ajacent to the bedroom. Dining are also cramped. Couch on curb side was nice but the attachments on it were not secure, overal quality very suspect.
As to the sprinter types all depends on whether or not you like twin beds/couches to sleep on. Looked at a mercedes/winnebago and its Quality was also questionable. The wall sections and pieces under cabinets were already coming apart and they still wanted 6 figures for it. Just make sure as noted what is the floor plan and if you will like it.