There were good directions on how to put the chair together so it only took about 20 minutes to do. It is very comfortable and easy to sit in for long periods of time.
I am blown away at how happy I am with this chair. It arrived the very next day after ordering. The price is great! It was very easy to assemble my teen daughter put it together in just 10 minutes or so. It's definitely helped with my posture and it's relieved the major back pain I was experiencing daily. I'm pregnant and work from home at a desk for several hours a day. This chair has by far exceeded my expectations. Also the color is really nice I ordered the green to match the look of my office. I love it.
If you are on the heavier side and plan to use this for more than a couple of hours a day this is a horrible chair. It was a pain to return so I kept it and let my kids (who are obviously light and use it for a short duration) use it.