Our dining chairs look like this. They are Navy Chairs by Emeco, and we chose them because we love the aesthetic. The lines are very traditional, but the material (welded aluminum) is a nice counterpoint to this staid styling. We thought that they would have a long design shelf life.
Durability was also a concern; I have distinct memories of the flimsy wooden dining chairs of my childhood coming unglued at every joint. Finally the set was reduced to a group of shaky impostors and the two "good chairs" which were carefully staged before each meal in a switcheroo reminiscent of the Pellet with the Poison scene in The Court Jester. The Emeco chairs, by contrast, are so bulletproof that they will still be around when the heat death of the universe makes sitting in an all-metal chair a very uncomfortable proposition.
However, that attractive brushed aluminum finish presents a problem.
My wife is, well, how to put this? Whatever the opposite of "Bootylicious" is. Bootylackish? Bonylicious? Having my wife sit in your lap is as delightful as having any lovely woman sit in your lap, with one caveat: you must also imagine the woman has a golf ball in each back pocket.
When she snagged one of the dining chairs to use as an office chair, we began to notice a disturbing trend. She was wearing through pants at a rate that was simply alarming. It took us some time, but we finally made the connection between cause and effect. That brushed metal finish is slightly abrasive. If you spend hours at a time in the aluminum chair, and there is a friction point (or two...).
In a move born of pure fiscal responsibility, we decided to upgrade her to a Mirra chair to match mine. I've been extremely happy with my Mirra. It's a less-expensive alternative to the Aeron, with the same functionality. Hopefully, the fabric mesh seat of the Mirra will pay for itself in pants in a few months.