I am six foot one and I hate this chair. The head support fits me right between the shoulder blades. I can't lean back. Reviews that say it's a great chair were either written by children short people or are outright lies.
This chair is very comfortable - good lumbar support and adjustability. I am 5’4 and my husband is 6’0 and we both found the chair to be comfortable. Like how it can be locked in a slightly reclined position. Love the airflow from the mesh. Took one star off because while the headrest does rotate up and down it extends out slightly too far when I am sitting in a fully upright position. Bought the chair on sale and like everything else about it so may just remove the headrest if it continues to bother me.
The chair was very easy to put together and it is light compared to my old office chair. The chair is comfortable easy to adjust and sets taller when all the way up. Overall I love this chair.