I bought one of the cheaper imported units when we built our garage. So far I really like it and have used it quite a bit. The only issue I've run into is that since all our cars are lowered I need to drive them up on boards to get the lift arms under them. I suspect this would be the case with just about any lift except those made specifically for sports cars. I can also see where shorter arms would be nice for vehicles with shorter wheelbases.
Once you get one you'll wonder how you ever lived without it, it's great. Here's a picture just after we finished the garage.
David