Instruct: Classify the given review as either positive or negative.
Query: I was skeptical

A friend of mine bought this early the day it came out and called me raving about it that night. I was skeptical at first, having heard the single before and not really being happy with it. I went out and bought it and listened to it all the way through.This is really a well done album and shows the band's maturity. The music builds off all of their earlier stuff but is different in its own way. It might become my favorite green day album to date, my favorite song was holiday and my least favorite was american idiot.