The thing that really got me was the art. I love JRjr's work.
The only things I've read of Gaiman are Neverwhere and American Gods, which were both novels, but they were pretty damn good. Plus, I've heard enough word of mouth that I should pick this up.
And it was good. It was contemporary, but you could tell that soon it'd get all cosmic. Dialogue was snappy too.
But really, the art was just exceptional.