article here summarizes everything expertly, including its infamous blending of fact and fiction to make things that extra bit stranger.
It had discussions of extreme body modifications, people made out of pure thought, and fascinating ruminations on where humanity ends and tech begins. Oh, and then the Elder-Gods type stuff enters the picture and shit gets really odd. I thought it was really good and found myself sad when it abruptly ended as some of Ellis' other works have done--be they for Avatar Press (so we shouldn't expect anymore "Anna Mercury" I presume?) or another publisher ("Desolation Jones," for one example of an assortment).
The first eight issues were collected, the remaining #9-#13 can be found without too much trouble in your local dollar bins as the series didn't exactly catch fire. I would recommend you read it, as it is Ellis being his usual interesting self, but with a fun and slightly off-kilter vibe that gives everything a mischievous edge. It's delightful stuff.