I purchased this and very glad I did. I’m a disabled veteran and suffered with chronic severe back pain. About 5 years ago, I started with daily chiropractic treatment and got some pain relief. I tried an inversion machine but it did not help me. Recently I purchased this Back Stretch Bench Pro, and assembled it. I started using it and I was impressed with the results. I only use it for 15 minutes at a time and get instant decrease in pain. This is the best investment that I have made in a long time. It is not a cure for the damage to my spine, but at least I have more mobility and taking less narcotic pain medications.