dknight's Journal: Learning Chinese (Mandarin) with Rosetta Stone?

So, with the recent Ask Slashdot about learning Japanese, it got me thinking. I've always wanted to learn Chinese (Mandarin). I've always been interested in Chinese culture, and I'm a kung fu nut anyhow. I'll never take myself to a class, it just wont happen, so I more or less assumed I was doomed. However, I heard/saw/read lots of rave reviews about the Rosetta Stone software. So, I guess I'm wondering:
does it really work?
has anyone used it for Mandarin?
how good is it?