My kids (nearly 7 and 8) have been playing around with it and enjoying it. Of course, they are *supposed* to be working on Portuguese, but they prefer the more exotic languages instead. How I'll get them to do their Portuguese lesson after our free library access to Rosetta Stone ends, I have no clue. Having 27 other languages to play with is a major motivator for them, and I often hear them on English (UK) or Polish or Hindi or (pick a language) after they finish their lessons.
Hope that helps a little,
Susan