From the shopping I did on 2 post lifts, the first big decision was Asymmetrical or Symmetrical? Then floor plate or top post? The one feature I really liked that even some of the imported lifts had was an 8 bend tower. I think that is a Rotary Lift invention that helps stiffen the towers and helps to keep sway to a minimum. The final thing I would look for in a 2 post lift is that the carriage that holds the arms is a fabricated from plate piece and NOT a piece of tubing with a hole drilled through it with the arms hanging off. I found this video to be very informative.
I have no connection to any lift company and I ended up buying a 4 post lift. But 2 friends bought the lift in the video 2-3 years ago and they have been quite pleased with them. Just like I am tickled pink with my Advantage 4 post lift with a rolling air jack.
The final observation I would leave you with is this: Many of us have researched, agonized and sweated over which lift to buy. We all want certain features and we all want the best bang for the buck. Amazingly, I've never talked to ANYONE who regretted getting a lift. Which leads to one inescapable conclusion: Even a crappy lift beats the hell out of having NO lift. Hopefully that puts your mind somewhat at ease.