This device does not decompress my back. I was hoping for the functionality of an inversion table without the inversion part. There's 5 people in my family and none of us have found it to be useful. It only seems to work on the lower back, and it's not very comfortable to use. The pressure on the lower back is painful. I do not recommend!
Not comfortable with the under the armpit support and hard to reach the adjustable wheel. I came up with a neoprene Velcro ramp to support my chest and seems to be working so far.