Got pros: A chair that is, in general, pleasant, but which does have one significant flaw Different cons: The joints of the seams on the back of the chair form a dense bulge, and I'm not sure if all of these chairs of this model have it or if I only got one with it. Because this bulge presses directly on the vertebrae, at first you won't feel it, but after some time it will start to pain in this area of your back, which is a really uncomfortable sensation. I have included a picture that shows the precise location of where the seams come together.