This app is incredibly buggy. It regularly reduces to a crawl after 10-15 min of use when I need to kill it and start again. Ive resorted to working on it in offline mode since it seems to be more responsive that way, though it still slows after a while. Besides this, the speech recognition will often accept gibberish (i.e. My kids speaking in the background) and reject perfectly pronounced phrases. Finally, while I generally appreciate the learning method sometimes you really cant tell what a new grammatical construct is without a bit more information and forcing you to only learn in the foreign language leaves something to be desired. I end up supplementing with Pimsleur and books.
Marjaduke about Rosetta Stone: Learn Languages, v3.6.0