I found this to be the most comfortable adjustable ergonomically designed chair on the market. It came in a brilliantly designed box with well organized parts and assembly instructions. It took me a little over an hour to fully assemble it. I bought it on a discount but even at full list price it is worth considering.
Chair was easy to assemble. Feels steady and comfortable. Raises and lowers easy. Arms are comfortable. Seat base is mesh so could be a little more comfortable.
First impression great fit for petite people. 6-9 months in and I am looking for a new chair. This one is rated for 5-10 hours but after about 3 I’m ready to swap it out for my cheap old cushioned chair. I’ve had to add a foam cushion to the seat of it just to get through a work day.