I have to admit, at first hearing I was a bit disappointed because I have the same compared to the older albums. Meanwhile, I have heard the CD several times and all the songs are on my MP3 player, they really liked me. One could say that Fall Out Boy have probably now rather taken the mainstream, the songs are not as rock and guitar-heavy, but rather popig, but this need not always be equally bad. The songs are absolutely melodic, almost sing-along and make a good mood, it's just fun listening, even if this may seem a bit of depth lacking. Even the song Save Rock n Roll with Elton John is really nice. Or Where did the party go is a catchy tune, almost a party hit.
I like the CD really good, although I still have to admit, I bought me because they cost 5 EUR and I was just curious what it now is by Fall Out Boy for New.
One can not say that it is not as good as the old albums, it is different, the band has taken a different line here, the less I like it on any case.