I've really enjoyed playing through this book. It has all (or most of) the parts arranged for guitar and they are very good. For example, it has the harpsichord part for When I Grow Up (To Be A Man) and the bass part for Dance, Dance, Dance arranged for guitar. It has tabs and the sheet music. It also has the harmonies written on the same line as the vocal melody however if you are looking for the vocal parts I would highly recommend The Beach Boys: Note-for-Note Vocal Transcriptions (also has the piano music).
Overall I think this is a great book to have if you want to learn some classic Beach Boys songs. I haven't seen many Beach Boys books out there with this many songs either. Good collection.