I purchased an almost identical office chair 5 years ago and as mine was starting to show the wear and tear decided to buy this one as a replacement. While I was able to put the chair together another pair of hands at certain times would have been gratefully accepted. Like all furniture there is always one or two parts that dont quite fit without a bit of tinkering and frustration. I was disappointed with the overall quality workmanship compared to the old chair but this is minor and should not stop you from purchasing. The massage part was okay but my older chair was more comfortable and gave a better vibration massage the controls and the unit are identical. The new chair does score points for a higher headrest which is important during a massage to stop your neck from getting sore from your head hanging backwards. Overall if you have never had a massage office chair I would still highly recommended it - just dont expect it to be the same as a proper hands on massage or similar to a massage chair that costs 3-4000 dollars.