Not worth the price It is supposed to help me with my posture but after using it for a month, I feel more comfortable sitting without it. I work long period of hours sitting in front of a computer and I don't think this helps. A normal cushion is nicer to seat on.

Making classes comfortable Backjoy seats make all day classes comfortable regardless of the quality of the chair seats. This is a great advantage for needleworkers. They also greatly improve long plane rides.

Doesn't perform as advertised Used it for 2-3 weeks and it helps just a bit. Never like shown in promotional videos, which are really exaggerated. It may be improved by giving it some height in the back or more slanted, and using a more sturdy material. Not pleased and would not recommend. Too expensive for something that doesn't perform as advertised.

No more sciatic nerve pain I ordered this because I have been making frequent 2-hour road trips to care for my aging parent and I was suffering from sciatic nerve pain. I'm happy to report that after the last two road trips, I did not have sciatic pain. It appears that the BackJoy device really helped to correct my sitting position and thus prevent the usual stress on my sciatic nerve. When I'm not traveling, I use it when I sit at my computer desk for long periods. I'm very pleased with this purchase.

Excellent Support I have been using the BackJoy seat for years, primarily in my car. I recently bought another plastic material seat because I feel like it provides better support than the softer seat, which I also use. The harder seat works better in the car, especially over rougher roads. I'm very satisfied with BackJoy and my brother recently used my two different seats and was very pleased with the support. He preferred the harder seat.