I've purchased this task chair a week ago and I'm pretty satisfied with it. Easy to assemble light and best of all comfortable. I liked the most the back and head support.
I have only been using the chair for just over a week and it usually takes me a month or more to decide if I like a chair. The only thing I wish it had is that the seat itself could be adjusted forward or back. I have one at home that does that but could not find one like it anywhere. I don't think that is a deal breaker though. However up to now I am liking it it is definitely more comfortable than my old chair and all the chairs in my office. I have played musical chairs with them all and this one is definitely the best. I will have to come back in a couple of months and let you know if I am still liking it.