Off and on. Seems like for years he was one of those SF authors that I was SUPPOSED to like more than I actually did. I've enjoyed a few of his stories, others not so much, read The Dying Earth when I was a teen and thought it was...okay, but somehow it didn't knock my socks off. Every time I've picked up one of his novels since then I would put it down part way through and never seem to get back to it. Maybe my problem is that his SF has a distinct fantasy flavor. Oh, now that I think of it, I also read Big Planet way back when, and liked it, but never felt like reading it again.