Okay I'm a little late to the party, due to avoiding spoilers and losing my password here..
I think this is my favourite Pratchett book for quite some time, which may add to the 'co-written by Pratchett' theory? As there has been a definite slide in recent years. In fact, it's my favourite since the last Moist novel.
It is a little jarring that it is as much about Simnel as it is Moist. I think I would have preferred either one to have been a supporting character to the other, rather than have them both as a kind of co-lead setup. It also felt like a book of transition, is it still the plan for Rihanna to take over?
Also, man, you guys get DEEP into this stuff. As much as I like someone, there will always be someone more dedicated than I