Not the best chair I have used in my life but if you can get this on sale it is worth the price. If you have access to a Herman chair go with that instead.
Finally a mesh chair big enough for big people. I am 6'2" 250lbs so don't fit into your typical task chair. When I saw this one with a wider "stance" and 275 pound capacity I decided to bite and I am glad I did. So far I love it and hope that it will last for years to come. I work from home and spend at least 10 hours a day in this chair so it has to be a good one! I highly recommend the Dexley Mesh Task Chair especially if you are on the taller and/or heavier end of the spectrum.