This chair is used our grandson for distant learning. The height adjustment works good. gave it four stars because it does not lean back very much. Other than that it is great for him.
Definitely recommend this product. Got this chair on sale; do not regret it. Very comfortable to sit on for the duration of my 8 hour shift (work remotely; on the computer all day). My cat even loves it and she sleeps in it almost every day. Would definitely buy it again in the future.