Only had it a couple weeks but so far so good. Bought it to replace one where the cylinder lost gas and you'd wind up on the floor. Use it every day for home office.
The chair iis comfortable and helps to correct any bad posture by not making slouching comfortable. It is ergonomic and not the kind of chair that one gets tired of sitting in. I only wish it had a heating pad like another product I have recently seen advertised. All in all the chair is good for anyone spending long hours sitting or with back problems.