We have an Acme tow dolly. Purchased it used because our car (Hyundai Sonata; only a year old when we got our first MH) can't be flat towed. Works great. On flat road/pavement easy for one (even DW) to move. When pulling into a back-in site, yes you do have to unhook first and stow the dolly (we just roll it to the back of the site and then back in over the tongue), but you have to unhook if you're flat towing too. Took an 8 wk trip last fall with another couple. They were flat towing we were towing on dolly. Yes they could hook up & unhook a few minutes quicker than we could but it really wasn't an issue. And we have the flexibility to change cars without having to get a whole new hook up system. Of course as mentioned, when time comes for a new car we may look for one that can be flat towed since getting on knees is getting tougher as we age!