This one is fun and maybe the next two in the series, but after that there is a pretty steep decline. Weird thing about P. Anthony is that his series get worse (and more ridiculous) as he goes along. Not sure why this is. Most writers of massive serial works are pretty consistent (the master Edgar Rice Burroughs, Stephen Donaldson, Michael Moorcock, and even Zelazny (consistent within series though I would agree the later books of Amber are a steep drop off from the first series)). Terry Pratchett has seemed to get better as time goes on and his fictional universe expands. But Piers definitely gets worse. The Xanth series is completely unreadable now. The only other equivalent I can think of is Philip Jose Farmer who had a solid 4 books in the Riverworld series and then kind of got bored and squeezed out another two (I think) that were a major stylistic change and certainly a disappointment for me.
Thanks fo the input, greatly appreciated. My friend that reccomended the P.Anthony book had pretty much the same take on the quality of the series. He has read them all but felt that after the first 3 or 4 the writing was getting weaker. Funny that you mentioned the Riverworld series of books, the same friend had suggested those to me as well.