Not enough practice speaking

Nowhere near enough practice speaking, which may be just as well because it "okays" pretty bad mispronunciations, especially of vowels. This may be a misguided attempt to be "lenient" or avoid going too hard on students-- but pronouncing a vowel incorrectly can completely change the meaning of a word. It would be far better to be draconian from the get-go; garbled pronunciation defeats the whole purpose of learning a language. Not that you would, because as mentioned at the outset, there is barely any practice speaking. Both Pimsleur and Living Language beat the hell out of this VERY expensive software, at a fraction of the price. Though neither is an app, both would be a vastly superior way to learn another language--again, at a small fraction of Rosetta Stones wildly inflated cost. Id give it a negative star if I could, because it wastes your time.

Scott A about Rosetta Stone: Learn Languages