Bought this for my 17 year old son, with a new desk, to inspire him to work harder for his A-levels.  The chair was very well packed.  A bit daunting for my son to see all the separate bits but he assembled it himself with no physical help from me and just a bit of advice.  Since then he is using the chair every day.  The adjustments work fine and the chair is very stable.  So, a good product at a good price and easy to assemble.