If you're talking about the Eames Management chairs, I've done it. They're surprisingly good, given that the arms are fixed and, well...metal. You just have to adjust the height so that your elbows aren't clonking on the armrests while you work at a desk.

The Eames put a lot of thought into ergonomics and quality, so their stuff is better than your standard OfficeMax special. But I'd still pay for a Steelcase Leap or an Aeron (especially since they're cheaper on the used market).

I hate those chairs, mainly because you can't take off the armrests. We had a designer propose the EQ3 version for an office, and there was almost open revolt -- some people love aerons and some people just tolerate them, but there wasn't another single chair which was at least ok for everyone and liked by most people.

I've really never understood Eames fetishization in general.

Yeah, it wouldn't be my first choice for an office chair either. I use a Leap at work (not a big fan of Aerons because of the lack of adjustments), but I have a knockoff Eames at home, and I've been surprised at how comfortable the thing is for long coding sessions. I definitely bought it for the looks, though. ;-)

What kind of Eames? The Eameses designed many different office, lounge and moulded plastic chairs (see http://www.eamescollector.com/furniture.html)

Sorry, good point - I meant the Herman Miller Eames Lounge and Ottoman.

I have a couple of leather Eames shell chairs (bright red ones; I can't find model examples of them anywhere on the Internet). They're good for slouching with a laptop, but I prefer my IKEA Markus at a table.