Nice chair, pretty comfy, and super easy to assemble. However, I had this chair for about 6 months before the mechanism that locks the back lean completely broke. Additionally there seems to be no tension on that anyway, so i cant lean back without essentially fall back into the chair. I contacted Massdrop about it back in November, and they were super understanding about it and offered to send me a new chair free of charge. However, my second of this chair has broken in the exact same spot, and Massdrop is not offering anything this time around (Despite still being within the one year warranty of the first chair's delivery, which should still be under warranty) I do have a larger frame, but I am nowhere near the 400 LB limit this chair has If you are someone that likes a locked back chair, I would not recommend it because it will break on you.