As only the 5th Terry Pratchett book I've read so far, I'm still immensely enjoying his writing and think it's hilarious. This book was funny, taught a lot about the main character Death, and the plot was interesting enough. 
 Hard to say why, but I found myself losing interest a bit towards the end, and some of the characters were very unfleshed out, and apart from being used to get the occasional quip out of them, kind of just a mcguffin. 
 Overall though, a good read, mixing humour with better story telling. I feel at these early stages of the Discworld books, you can still see Pratchett learning how to mash together getting across a message, being funny, and keeping a story structure in place.