For a 2 post- the anchoring needs to be "right" and the floor needs to be right.
I know several people who have bought used, name brand lifts and not had any issues.
I couldn't afford a lift like I want if I had to buy new- 4 post with alignment turntables and air jacks.
I've seen three in 5 years for between 2K and 3K. One of these days the stars will line up.
