I bought the Herman Millar Mirra - the version down from the Aeron - about 4 years ago. Was it worth the cost? Yeah, yeah it was. Ignoring the ergonomic benef

I bought the Herman Millar Mirra - the version down from the Aeron - about 4 years ago. Was it worth the cost? Yeah, yeah it was. Ignoring the ergonomic benefits, it's just a damn good chair. It's very comfortable. The tilt options are particularly good. I've been known to drag it into the living room to watch TV on if I'm having a bad posture day. And the lifetime guarantee is really nice, and appears to Really Mean Lifetime. The seat started going about three months ago - I phoned HM up, and a new seat turned up in a truck about a week later. I can imagine not buying another chair for 10-15 years or more, and at that sort of timescale, it's a bargain. (See also: the Captain Vimes "Boots" theory.)