Ah, the Aeron chair! Hard to dump on a chair that's a museum exhibit . . .
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I'm sitting on one right now. It was a gift from a neighbor with serious back problems. Her family gave her a check, and she went to an ergonomic furniture store and bought it. She suffered with it for two years and asked me if I wanted it: it cut off circulation in her legs. I did a little checking online, and guess what? The Aeron chair is not fully adjustable. It comes in three sizes:
Size A
H:41"
W:25.75"
D:15.75"
Size B
H:42"
W:27"
D:17"
Size C
H:45"
W:28.25"
D:18.5"
You are strongly advised to try at least two sizes before buying. My neighbor is 5'1" and the dealer sold her Size B because that was what he had in stock. Damn straight it cut off circulation. I'm 5'8" and it's not a perfect fit for me, but with adjustment it is useable and pretty comfortable. It's better than what I had before and it looks nice.
The Aeron was considered acceptable design in 1994, but it was more about form than function, which is why it's in the Museum of Modern Art.
If you want an ergonomic office chair, go to a specialist dealer with a lot of chairs in stock and try everything. Write down the names and prices of the ones you like, and do some research online. Go to manufacturers' web sites and read specifications, like my neighbor should have done with her Aeron chair. Then check prices. If you find better deals online, talk to your dealer and see what he's willing to do for you. You're not asking him to compete with Walmart. Walmart doesn't sell ergonomic furniture.
If I didn't do much desk work and just wanted something that looks cool, I would look for something like this.
