I read Bone since issue #1. Loved it. Started reading Rasl when he started putting it out there. Didn't love it. I just didn't find the writing as fluid, or the themes he was tackling that interesting. Like Corey says, it was very nerd-interest-specific, and to me, done so at the expense of the story / theme / overall point. The ideas seemed conventional, the characters, kind of flat. Not that Bone doesn't have a list of obvious influences, but it just fused everything in a personal enough way to give it a unique life- and I don't really care for fantasy as a genre, I just loved Bone for itself.
But... I only read the first few issues of RASL. Does it get better for a non-sci-fi loving non-nerd?