I am happy with my chair however I tried the blue one out in-store and it had a cushioned seat with a mesh back. When I saw that there were two color options I ordered the black. The black chair has both a mesh seat and mesh back. I am concerned about the durability of a mesh seat but I am going along with it as I needed a chair and it is comfortable. I did put my knee on the chair the other day and the mesh doesn't do well with that. Just writing as a heads up if you are considering these two DIFFERENT models.
I appreciate that you had a variety of chairs to try out and I found one that was light and not so bulky. It works well in my work space. I had to wait an extra day for it to arrive but it was easy to put together. Thanks