This is supposed to fall under the 'big and tall' category but it is only designed for 'tall', not 'big.'
The seat front is so long that unless you are really tall you will need to put a pillow or something at the back of the chair to push you forward so you can bend your knees. I have to do that and I'm 5'9".
The arms are a joke. Cheap plastic with recessed bolts that are difficult to get too, covered by decorative, snap-in plates. Anyone heavy using these to get themselves up out of the chair will feel them ready to snap. After a few months, they become so loose you have to remove the plates and re-tighten. 
The mechanism to keep the chair from tilting back and forth is very finicky, sometimes it just sets itself in the wrong position.
The only good thing is it feels sturdy on its base under weight but I have to say that from the standpoint of a heavy user I dislike this chair immensely.