I use this chair at work and when needing to upgrade my personal chair I knew there was only one option. And with it being on sale too this is a no brainer.
I've had this chair about a year now and it was fine until a few months ago when it started to lose chair height. I am not a tall person so keep the chair at maximum height it has started to slowly (over the course of a minute or less) lose height on a regular basis. It's awkward in meetings to be slowly sinking and have to readjust.
This chair is great -- pretty easy to put together with VERY clear instructions. It is adjustable in the right places for me and provides good support. It is not inexpensive but very sturdy and ergonomic for that price. The only problem is that my cat thinks the mesh fabric is very fun so I need to find a slip-cover to discourage that behavior.. :/