Listened to the new album about 2 times now, but I must say I'm very impressed.
It has the "fa la la la la la" of the last albums with more "grown up/intimate" parts to make it one solid albums.
It has a cool Elvis/Flaming Lips/Modest Mouse vibe to it. Mix that with all the amazingness that you know and love about Vampire Weekend and you have the new album.
Well to me.. and that's a very abbreviated description. Mostly because my attention won't allow me to type much longer than that right now. But I know if I don't type this now I will forget to do so later.