I have a Horn it is outstanding! We bought it as a floor model
http://www.hornofamerica.com/product...&productID=125 so it was considerable discounted and an impulse buy. I said I wanted one and my DH said okay.
I would check craigslist and kijiji for used ones either Horn or Koala.
Features I like are it is big 4 feet by 5 feet, the back part drops down if needed. It is on casters for easy moving. It is heavy and doesn't wobble or vibrate. It has 3 levels with a push down hydrolic lift.
Hope that helps.