Would not recommend this chair for anyone over 5'11". The headrest/neck although removable will end up at your shoulders with no meaningful adjustment possible. We ended up returning half of our chair order for this reason. Others have complained that the chair seat cuts of the circulation to their legs due to the pressure it applies behind the knees. Will not order this chair again.
The chair is comfortable. I had it assembled at the store but I wish the instructions had been saved and given to me. I had to try to figure out all the adjustment workings on my own. The chair is comfortable. I hope I'm as pleased with it in five years as I am today.