Demco dolly

I have, and I think I would never buy an Acme Tow Dolly. IMO, based on a lifetime with a wrench in my hand, something is twisting in the steering of that car that was not designed to twist. I do not buy into their explanation of how it works.
I would buy the American Tow Dolly. It really steers, the price is comparable, and they deliver it right to your door!
Of course, IMO, the DEMCO Kar Kaddy is quite simply the best. I wish I had never sold the one I had, even though it did not have brakes!