This is the Fifth Inspiration of Moonson.
You know a piece of writing is exciting you when you find yourself reading it in a voice of some sort or another. I cannot help but read the entries in the style of Peter Sellars' "Bal-Ham: Gateway to the South." They are hugely amusing and packed with references, but in no way sacrifice the playability of an RPG supplement in the process.
The Rough Guide reminds me of my other favorite bizzarre city setting, Fever-Dreaming Marlinko. As with that work, the humor may not appeal to everyone. If you aren't impressed by the idea that the Red Emperor may act a bit like late-stage Elvis, then this probably isn't for you, but you can't say you're not warned by the cover.
Talking of which, the art is top-notch, but in the portrait of the Goddess Glamour it reaches a new height for community content in my book.
As they say in New Pelorian, Double-Plus Good.
[5 of 5 Stars!]