The chair does not have tilt lock as indicated in the description. It tilts but does not lock in the tilt position. This is incorrect information to the customers.
This chair is very good my posture. I can pull up close to the desk and I am forced to sit correctly. Since it has a mesh back/bottom it allows me to stay cool.
The chair is utilitarian. I sit in it 6 hours a day and have no problems with comfort. At 6'2" the adjustable armrests are critical as is the lumbar support. My only knock is the headrest does not adjust forward and back only up and down.
I love this chair it's very comfortable and for my height and weight it feels just right. The lumbar support is a lifesaver as I am not suffering from any backaches. Anyways I would recommend this chair to anyone that works long hours behind a computer.