Gary,
I installed a Hydralift on my 40' Dutchstar. The thought for me was to be able to take my Goldwing and a toad. The Hydralift only weighs ~ 300lbs. Most of time I wind up taking the bike and renting a vehicle (depending on destination) if needed. I enjoy the smooth performance of the Hydralift.
It works for me, but I was able to visit with another RV's that had one installed.
I had the coach weight checked w/ bike on board and my particular coach was okay.
Phil