I had a lot of issues with this chair. I originally ordered 2 chairs. One worked (and is still working perfectly) and the second chair clicked when I pulled the lever, but never went up. If I kicked it on the side sometimes it went up. I called and they sent me a new chair. This chair does the same thing. I pull the lever and it releases, but rarely goes up. After I release the handle, I just leave it and sometimes (rarely) the leg part just jumps up on its own. I think Wayfair should stop selling this chair. I haven't even bothered to call about this one. I am so not happy with the chair. Their customer service is fine.