Anybody use one of these? Looking for some feedback on how good they are, quality wise. I understand they aren't a replacement for a 2/4 post lift but for a lot of things they would be nice to have. I like the fact that they can be moved to different areas of the shop. Models are the PMR6 mid rise auto lift or MR6 nid rise auto lift or TCPL6 mid rise auto lift. Seems to all be the same thing made overseas & sold under different labels.