Oh, Terry Pratchett, how do I love thee (and Sam and Sibyl Vimes)? Let me count the ways!
Any new (or new to me) Pratchett book is a cause for celebration, and a new Vimes book is double the cause. I adore Sam Vimes. He's the copper equivalent of Granny Weatherwax--the best at what he does, and someone who has no sympathy for excuses because he knows just how hard he has to work to stay good.
I don't know if it was my mood, but the beginning of Snuff seemed a bit rambling (much like this review). There were still some wonderful lines in there (like how Vimes had never entered a church with religious aforethought), but it didn't seem as tight as previous Discworld books. Possibly it was just because the setting was so different--the countryside, the nobs, the servants, Sam as husband and father foremost. But then we got to the Case. And, oh, there was the Sam Vimes I knew. He's older here. A little bit slower to run after trouble. But he's still the uncompromising believer in Truth and Justice and Law and Decency that I've looked up to for years now.
My one complaint with this book (well, other than my usual 'I want more!'), is that it was full of typos. I realize that an occasional missed comma is always going to happen, but shame on whoever proofread this book and sent it out like this. It was missing lots of commas and some periods and quotation marks. Words were randomly capitalized in the middle of a sentence. Paragraphs of multiple speakers were conflated. It wasn't the most typo-ridden work I've ever read, but a large professional publishing house should do much better.