Not Plastic!
It starts you off really easy and then begins to gradually get harder until it matches you up with your skill level. I was thinking this game might be a dud and not work, but I was so wrong. The only downside to the game is you may not like the song selection (but i'm smelling dlc in the future). It doesn't have a crazy setlist like guitar hero or rock band (sorry no dragon force), but I feel that the songs chosen are great songs to learn on guitar.
The awesome thing about Rocksmith is that you actually feel like your learning and practicing the guitar and not clicking on a plastic controller. So if your into (real)guitars and like playing video games check this one out!!