Well, since we're all trying it, I ran three samples through the site (one from my first novel, then a sample from two different short stories). The results were: Stephen King, Anne Rice and Agatha Christie.
I'm not complaining. All three of those have written books I like very much, so I'm just going to assume that I write like them on their good days.
But I do wonder if the site has a sample from
Dale M. Courtney. Getting that result could be truly frightening.