I read all the other reviews and was a little skeptical about the machine. I have Lumbar arthritis and general pain in my lower back and legs. I find the table must be set taller than you actually are and it won't return to the upright position without you actually pulling it upright. Having said that, I thought it was worth a try, The first couple of times you use it, you will be in pain. Don't try to go all the way over and don't use your whole weight. Work up to it and remember to come back to the upright position slowly. I can now go fully inverted, don't feel light headed, and the back pain is better. I need to make time for at least 20 minutes 2 times a day upside down. I would recommend it if you have some kind of disc damage. I'm 59 and didn't ever meet anything too heavy to lift. Now, I'm paying for it. The table seems to be helping. Only had it about 3 weeks, but, so far, it's a keeper. Don't expect immediate relief and be prepared for "new" pain when you first start. Hope it helps you too.