Kneeling chairs?

[BuzzKillington]

Are they actually good for you? Has anyone used/owned one?

http://cgi.ebay.com/Black-Ergonomic-Kneeling-Office-Posture-Task-Chair-/110515337149?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item19bb3a37bd

[Twigsoffury]

Are they actually good for you? Has anyone used/owned one?

http://cgi.ebay.com/Black-Ergonomic-Kneeling-Office-Posture-Task-Chair-/110515337149?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item19bb3a37bd

looks like you could have some really hot sex in it in a lot of different positions.

[Kayin]

I used to use one, and am actually going to order another. I have a lot of lower back damage, and it helps a lot. Also, as I tend to hunch over when I draw/write, the chest piece on some of them makes a lot of sense.