Good stuff, but I think there's too much hype surrounding them. I expect their next Album will suffer because of it. Whatever, this isn't a new sub-genre whatever you may think, Soulwax and Ladytron to name but two have been doing this for yeeeeeeeears.
That said, it's a very good album, good and rocky with Gravity's Rainbow a great song (probably referencing the Pynchon book of the same title, but I haven't read it yet!)
and Magick (Alesteir Crowley perhaps? are Klaxons actually Ordo Templi Orientis?) both anthems in their own right.
Whatever I say about them, they've got talent, aand they're championing intellectualism with their music, which is a great move for an otherwise stagnant and depressing youth culture.