I love this chair. It is attractive (not massive like the upholstered ones) easy to move around and extremely comfortable. It is also easy to adjust. I started looking for a new chair when I realized the old one was probably the cause of lower back pain. With this chair I do not have any. Incidentally I purchased it at Staples locally rather than on an internet site and again could not have been happier with their sales person service and helpfulness. Forgot to mention - the price is extremely reasonable too.
Very happy with my chair. It provides GREAT back support and is cool and comfortable for long periods of working at my workstation. All the adjustments made it easy to set up for maximum comfort. ( My only comment would be that you may want a floor mat for wood floors. The wheels are thin and might mark up your hardwood floors. )
The sales person indicated it was simple to put together. I didn’t believe him but I tried anyways and he was right. I did it by myself and was pleased with my accomplishments The chair is very comfortable and helps out my posture. If I had to have my cons would be the headrest. I wish it could Move if I didn’t want it at certain times