Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Disappointed

As a long time Beach Boys fan who is in his 50's, I was rooting for Brian Wilson to pull this off. Unfortunately, this is a very mediocre album and in places really grates on me. My wife made me take it out of the player in the car. "Good Vibrations" and "Heroes and Villains" realize the potential of the 60's versions and shine as the albums best cuts. Most of the rest of the album is unlistenable. It is Pet Sounds progressing to the next level (not a good thing) and almost sounds like a Pink Floyd "Dark Side of the Moon" wanna be, only 35 years too late, and not as listenable.