Wait.... people still buy pc programs? for money? Seriously though, no I haven't tried it but I've been thinking about it. Most of the people I work with speak Indian and Spanish so it would help a lot I think.
I know 2 people who used it for a little while, the problem was you never actually use the language you want to learn so you get board with it and forget it unless you learn something your going to use a lot. my 2 cents.