What I usually hear about Anthony is that to extract enjoyment from his books you want to start at the beginning of one of his endless series, read them in order, and the moment you stop having fun, just put the book down and walk away, because they're not going to get any better.

As I happened, I followed that advice: I started reading "Split Infinity" (the first one in the Apprentice Adept series of SF/fantasy crossovers), came away thinking "Eh", and never read any more.

But people keep telling me that his first novel "Macroscope" was really very good.