I have a crysteel with fold down sides. I love that option, I use it about everyday. If you were to haul mostly with that body, it would probably not last as long, but I haul only a few loads per month that I actaully dump, the rest of the time it hauls home improvement supplies, so it has held up fine. Nice dropping a side, than either climbing over, or loading out the back.
I am not the biggest and I am not the best but I fall somewhere comfortably in between.