Cool chair, as soon as i sat in it at the store it felt right - however I'm unsure why? well it should definitely come with a lumbar cushion - because mine didn't and the design forces a plastic support right where your tail bone is - which is quite uncomfortable if you like to sit up straight!! but if you're chill and slouch then it isn't so bad... The arm support and chair adjustability is great, buttons are aluminum so seems sturdy and can be set just how i like it. But my review would be much happier if it simply came with a lumbar cushion similar to the head cushion (as the head cushion is made of a really nice material) Overall, fo...view more