This chair is less than impressive. The tilt and height adjustments are as good as one might expect but the tilt-lock provides a disappointing amount of slack. The seat portion is also insufficiently padded; instead the front of the seat is generously padded. The "high" back advertised is perhaps just right for people of diminutive height but as I am 6'1" and some change the top of the chair's back comes to just below my skull not supporting my head at all. The truly great thing about this chair is its ease of assembly - each step corresponds to an individual packet of hardware. It's almost impossible to use the wrong hardware. Assembly took just under 15 minutes. But I'd rather it take an hour for a chair that supported my posterior and my cranium properly.