I'm pretty sure that the UHaul hitch and the Curt hitch are the same design, if not the same identical part. It works okay, but sits so low, that it will limit your off-roading activities somewhat. The benefit of the Curt hitch is that you do not have to cut your cladding to install it.
Last time someone looked, Tone was no longer selling the Curt model, and was only selling his frame-mount one.