Well I'll give it a shot. Going on two years now we went to a gas C from a 40' DP. Gave up a bit of space but still have reasonable storage, a walk around bed, two 32" TV's. We came down in size to a 31 to get into smaller spots we like, state parks, national Forest CG's and this give more options for the had to get into CG's as there are more spaces to fit. Don't see much mileage difference and have the same toad. Power wise I pass many DPer's going up the pass's out west and only see a power difference on the high 8000' pass's as the DPer's have the turbo to keep the power up. Happy with the gasser but one must look for the RV that suites you. Cost on the gasser for maintenance is down quite a bit from the diesel. We carry a bit less **** we don't use as bay storage is down some.
LEN