I bought 2 of these. In less then a year they both are defective. The hydraulics will not hold up and the seat keeps lowering all the way down on its own. Disappointed!
After two years my back started hurting from sitting in my son's juvenile desk chair so I thought it was time to get a grownup chair. This chair was inexpensive easy to install and easy to adjust. It is also on the small side which is just what I need. I'm a small person and I don't have a lot of space in my home office.