I have a Bend Pak 4 post lift and love it. If I had the room, I'd like to have both a 2 post and a 4 post. Most of my use is for storage, so if that's you, too, a 4 post is the way to go.
I converted my garage door opener to a Chamberlain wall-mounted style and had the door tracks converted to follow the wall and ceiling for greater clearance. I have 10' 8" of ceiling height and can store two Mustangs on and under it easily.
I bought my lift from Summit Racing online and got free shipping. That saved several hundred dollars. I wanted a Backyard Buddy, but at twice the cost, I just couldn't justify it.