My back went out "again" on Jan 1, 2015, I stayed up a little late that evening, out of fear of not being able to get out of bed the next day, while scanning through the TV stations, I came across the Teeter Hang-up infomercial. I recorded it, to show my wife the next morning, after watching, we immediately purchased it. Three days later, it arrived at my door. My wife spent 30 minutes that morning putting it together.(Very easy to assemble) Adjusted the balance and got on it, I felt an immediate relief. After a week of using it, at 2:00 minute a day intervals, my back automatically popped/stretched back into place! I/we continue to use it everyday and feel younger each day I/we use it. After countless trips to the Doctor's office and countless co-pays, it has more than paid for itself! We are now, surgery and pain free! We LOVE our TEETER!