We had a '97 Rexhall Rolls Air with a Cummins C8.3 and an Allison MD3060 on a Spartan chassis. It had one slide out. We owned this for 9 years. We liked it and had some good times in it. The engine and transmission were bullet proof; it started immediately every time. All the systems in it were name brand: Dometic, HWH, Cummins, etc. So parts and manuals and service techs were easy to find. The biggest problem we had was the HWH slide out hydraulics leaked like a sieve. Once we found a competent mechanic the leaks stopped. We discovered the generator wasn't installed correctly, but that was a simple wiring fix. We've seen only one other Rolls Air, but that was gas-powered. We miss the large kitchen, something we haven't found in other motorhomes.