Shortly after having bought the chair it started to make annoying noise even with the slightest movement. Contact the company and they sent it another base then I had to disassemble the chair etc; and since it is tight fit it is a pain to disassemble (much easier and faster to assemble it). Now the chair simply does not go up or down at all. I am not a heavy person by any means and don't even use the chair everyday. This is really ridiculous. The quality and quality control is abysmal and they only provide parts.
This is the most uncomfortable chair ever! Needed to buy memory foam cushion because it’s too late to return. While sitting at my desk it also feels like it’s lopsided. I regret buying. Very inexpensive so I guess I got what I paid for.