The Anubis Murders is a fun read that is a good kick-off to the Planet Stories line. I quite enjoyed the book.
The characters are distinctive and the protagonists are interesting and engaging. I especially liked the rapport between them, and there was never a dull moment when they were featured. The plot moves along at a nice pace and the action is well-written.
The only thing that was a bit out of place was the ending, which, without spoiling it, leaves a little room for improvement. Suffice to say, it's clear that this book was not meant to competely stand alone, as there is certainly unfinished business.
The Very Bad
If you are new to Gary Gygax's novels, and/or if you intend to read his "Gord the Rogue" series, then skip the introduction by Erik Mona. For some reason, Mona makes the (in my opinion) very poor decision to throw out a pretty major spoiler for both the novel and the Gord-The-Rogue series.
Again, I enjoyed the novel and look forward to more great stories in the line.