I like the Hyken mesh chair because it allows air circulation around my legs and back. It's perfect for warm summer days sitting by my computer. The chair has a solid feel is easy to adjust and allows me to recline in comfort.
I'm impressed by this chair - it's definitely sturdy easy to build (and well-designed so not only is it easily built but actually feels like it's sturdy and will last) using just screws and "L" wrench and looks elegant when I walk away and come back to my desk. I love the adjustable arms tilting and support. But the real sticking point for me is the headrest that is awkward no matter how I adjust it. I think it portrudes too far in. I'm probably going to opt for a leather manager's chair so I don't have to mess around with a separate head rest feature.