Oh! In that case, I've got that one, too.
I love the fluff, as mentioned, and the models look pretty sweet. My only problem is ultimately it's utility as a stand-alone book. They basically *have* to work as allies with somebody or they just won't have the tools to be an effective list. Taurox Prime, while cool, can't sustain the kind of firepower they take if they're the only vehicles on the board, and Valkyrie-only armies need to have units on the board Turn 1 to remain relevant, and that's pretty hard to do, too.
I still want to figure out a way to do the Tempestus with =I= allies effectively, but I haven't figured it out yet.