This is a great chair! The lumbar tilt and height controls are smooth and strong and the chair is comfortable and quiet. Assembly was a snap (follow the instructions.) I would recommend Union & Scale to anyone. Thanks.
I got this because my other chair was OVER 4 years old and just didn't support my back. This one DOES! I am at my desk 5 hours a day and the back support is great but I am still trying to find the 'perfect spot' to set the adjustment and that was done last night.