I have a Teeter Hangup F5000 table. As I said in my first reply, I've had great success with it. Prior to using the table daily, I had really bad sciatica in my right leg which was the result of a severely pinched nerve at the L5/S1 level. After about 4 months of using the table, my sciatica was completely gone and has not returned (knocking on wood). I still use the table every morning because I love how it stretches out and decompresses my back.