Rocksmith helped me fine-tune techniques and to read tabs faster. I already can read music but as I am not originally a Strings player I have issues transposing the music I am reading into notes on the strings. My wife has also been a great help; she is a strings player from the start. She owns and plays multiple strings including 5 violins, cello, mandolin, banjo, and banjo-yuke. This was my inspiration to learn how to play Guitar (already was playing woodwinds, oboe, bassoon, variety of clarinets [mostly bass or contra-bass]). TL:DR if you know nothing of music it can teach you how to play some, but without a proper teacher some is not enough. Either get lessons along side Rocksmith or try finding some people to jam with and have fun.