I'm sitting in that chair right now actually (it fluctuates in price..i've seen it from 59-79.). I had another chair before, but thats all worn out. (I have very aggresive butt-cheeks.)
Its not bad...the arms are not adjustable, but the height is. Its fairly wide at the hip area and there is a weird hump in the back. It provides decent support, but its hard to actually sit "in" the chair. It feels more like I'm sitting on top of it and its not all that stable. I think thats the basic flaw with a lot of these cheaper chairs. And also, because of the non adjustable arms, if the desk I'm using doesn't line up, its not very comfortable.
I've tried out the so-called popular chairs, the Aeron, etc. The support is much better, kinda like sitting in a firm net. But I wear out chairs at a tremendous rate so I can't justify the cost.