Enjoyable as Pratchett always is, but lacking his normal subtly. The 'rage' and frustration with the world that Neil Gaiman talks about Pratchett having does come through.
The book did include two of my favorite central plot characters - Vimes and Moist. However, perhaps b/c it was a story centering on Moist and his viewing of the world, Vimes felt different. And Vetinari just felt wrong (going back to the subtlety issue).
However, a fun read regardless.