While there are perks to using the Rosetta Stone method, I am an adult who benefits from a more direct, didactic teaching style. I prefer to be simply told the grammar rules so I can assimilate them into the understanding I already have for how languages work, and to be taught the alphabet outright and be allowed to structure my vocabulary on my own terms. Babbel provides this learning style and it is an excellent compliment to my college Russian course as well as a useful companion system to use in tandem with Rosetta Stone or by itself.
RMacSeain about Babbel – Learn Russian