I ride almost exclusively off road on (for me) pretty tortuous trails, and a mid-drive seems best. However, initially I rode a Dillenger 36V, PAS front wheel kit and had a blast with it on errands or off road on the same trails. Eventually, my daughter absconded with it. The 52V, rear hub system I just built doesn't seem to be as much fun, perhaps because the heavy rear wheel detracts from the experience.