Richard Laymon's "The Cellar" and Other Books

I’d heard that The Cellar was pretty good, so I was excited to see that it was back in print when I stopped by Borders the other night. I just finished it and I’m not too impressed. The writing seems amateurish and although the story was fairly interesting, I didn’t at all care for the ending. Or maybe I should say that I didn’t care for the way the ending was executed. I mean, I don’t have a problem with dark endings, but this one seemed somehow out of place, like maybe he just ended it that way to be “shocking.”

So my question is, Are his other books any better. I know that The Cellar was his first book, so I’m thinking that maybe his later books (including the sequels to The Cellar) are better. Are there any Richard Laymon fans (or detractors) who can tell me about his later works?