Wonderful chair. Having short legs, my feet hang. I can position the ring where it's comfortable.  I never use the release controls to recline the chair, plus there's always some "play" with it. The arms are relatively soft,  not hard plastic. The back is set at a small angle, plus there are no ergonomic curves which never fit me right. The chair is heavy duty, and the screws and threads are all metal and feels solid.