Boring and very unlike what u expect from a movie titled Rock on. Acting was good as in this movie we will see some great star casts like farhan aktar, Arjun Rampal, Shraddha kapoor, prachi desai and so on. so u will get a good acting movie but. coming to the music its too slow. and in some scenes its farhan was terrible. it is very difficult to listen him.
Unlike previous one a good story most importantly a magnik of music. some event in this movie were unnecessary and irrelevant. I think script is the one which took away everything. even though the acting was good u cant compare this to first part. I think director dint succeed to put up a good movie.
Overall I would say if u are a music lover then just give a try. otherwise just wait for next.