Those are my favorite features. Easy to move around because it is lite. The mesh also allows air to circulate around and under the seat making the seat itself cooler which was a pleasant and unexpected surprise.
This is a really nice chair in general. But there is a section of plastic under the mesh of the seat cushion on each hip that protrudes out and hits my butt when I sit in it. I'm 220 so a little bigger than some. These two areas I think will be come a bit annoying. I may be able to carve them back a little or put some padding between the mesh and the plastic to absorb some pressure. But I would go to the store and sit in this chair before buying it (which of course I didn't).
I find this chair to be very comfortable! I added a back cushion since I am short and prefer to sit a little more straight up. Great quality for the price.
The chair is perfect for our needs it is my wife and I both use it while sitting at our desk. It is beyond comfortable and it is magical for my back! No longer have any discomfort after sitting for any length of time in it. Just a great chair!!