Panic at the Disco - Pretty. Odd.
If you go on Amazon you can read reviews of all these people that are disappointed that this doesn't sound like their breakthrough first album. These people are entitled to their opinions, even though they're wrong. Bands often "mature"--but this isn't that simple. It's a breakthrough in it's own right. If you want to listen to their first album, go ahead. But you'll be missing out.
Update: I'm posting an image of an Amazon review that just kills me. The fact that someone thinks they can adequately judge an album on one listen, just slays me. Tracks 7 and 8 are utterly beautiful and he passes them off as being too slow... I suppose Shawshank Redemption was too long and slow as well. He'd much rather watch a Vin Diesel movie or something. Ugh...this guy.