Was replacing and chair more than 10 years old (also Staples!) and find this just as comfortable maybe slightly more so. BUT I did not pay enough attention to the height of the back - the other was a few inches higher and I kinda wish I still had that head rest even tho I don't often lean back that far. But I think I will get used to this and eventually not miss the head rest.
The chair is great! However it does not lean back it may have been an issue with my chair specifically but the lever does allow the chair to lean the chair just won’t lean.
Good chair for the price instructions were easy to follow. Do to tight packing in the box one arm is compressed and slightly mis-shaped. Did not bother to ask for replacement part