Tis a bit different than the normal 'pop' fare, especially considering the dance-music/auto-tune kick the world seems to be on. But, I thought the vocals were mixed, and the album in general, were given a more open feel. The vocals feel more 'live', more old-school rock, which, I don't know, is pretty cool sounding.
I"m babbling now, but I just like em. It's less in your face, less ear piercing, and more just part of the tunage.