Sometimes an album is so good and makes its case so flawlessly that it spawns a mini-genre of its own and becomes shorthand for a prescribed set of values.
That's Pitchfork's perfect 10.0 review of the 2004 reissue. I have to say, I was expecting a lot more ambient flourishes and a lot less funky drummer. There are also some Orb-like found sounds scattered throughout, but perhaps that is standard operating procedure for this genre. All in all, an excellent album on first listen.