Harbor Freight 6000 Lb. Capacity Scissor Lift Review, Central Hydraulics, is it worth it?

I have one I bought about 5 years ago from a local vendor...(probably from the same Chinese factory....) 110V, works fine for my Duster....probably be a little sketchy on a 1/2 ton or bigger truck / Suburban... I would definitely want some jack stands under anything large.