It took me a while to write a review on this chair as I purchased it back in August.  I just want to say, it is an awesome chair and I had it over 5 months now.  It is really comfortable.  I got the blue one.  I absolutely love it for style and comfort.  I can sit in this chair all day as I work from home and it does not cause me any aches or pains and I've had no problems with it what-so-ever.  It is super comfortable and I would highly recommend it.  A great buy.