I've got a friend that's got a harbor freight lift I think it was around $300, he's happy with it, but prefers my SAM1000 Handy Lift.
I've had this handy lift for a couple years now and it's superb, very happy with it, lifts make life so much easier when working on a bike, I waited far too long to get one. The handy is used by most motorcycle shops but is more than twice the price of the harbor freight version, I think mine was about $750 if I recall. WOrth every penny.
Handy Industries Online Store
PS, if you have a choice I'd opt for the pneumatic vs. electric version, less to go wrong.
Chris