I was introduced to it by my son. He's 22, has Asperger (high functioning) and lives in his own apartment close by. To make sure he's doing well I meet with him on a very regular basis. He started playing the original Rocksmith but it seemed kind of clunky to me. Then he started playing the new version (2014) and I really liked it. Now we try to make it a weekly thing (gig) for him to come over and we play together. I bought a bass and we'll switch off playing bass, lead or rhythm. I'm really enjoying playing bass also.
I tried learning guitar about 15 years ago, but I wasn't having fun and eventually lost interest after about a year. I've learned and progressed more in the 6 months that I've played Rocksmith than I ever would have imagined those may years ago. I still suck, but I suck less than I did 6 months ago.