This is a very good chair. Firstly, assembling is easy, the tool is included and instruction is easy to follow. The cushion is comfortable. Not too luxury but good enough to sit on for a long time. The neck rest is also helpful when change to the recline mode. A great feature of this chair is the back massage. After few hours working, having 10 minutes massage to the back is fantastic. I just need to plug the pre-installed cable in the USB port, then enjoy the massage. Recommend this chair