Very disappointed.  Recline is not spring loaded, have unlock and lock to pull self forward and lock, unlock and push backward and lock.  Lumbar is non-existented, arm-rest do not adjust, ..nothing ergonomic about this chair ...up/down ...lay back ...that is this chair ergonomic features ...very disappointed.  I do not recommend this chair.  Considering sending this chair back even if it cost me to return.  Keeping my old broken chair is a better decision than keeping this chair.