It's certainly different, but in a good way. There are a lot of really enjoyable songs and Justin's awesome lyrics are still there, plus there are a ton of familiar elements from other albums without it being too familiar.
I think I was still expecting another uptempo album in the vein of My Dinosaur Life when they announced the new album.
Needless to say, I was a little off-put when I heard some of the new songs. Listening to the songs again though, I can say they're really growing on me.