I only got to p. 35, so I'm not sure whether I gave this a fair chance. 
 To be honest, I just didn't get it. I had no idea what was happening, who was talking to who, what people/places looked like, etc. Normally when I'm thrown into a story I get familiair with the plot, world and characters eventually, but with this one the confusion just kept growing every page. Maybe I just don't get Pratchett's kind of humor. Everyone says this series is a masterpiece and surely it must be, but this series isn't for me. If I compare it, for example to the Hitchhiker's Guide to the Galaxy, I also didn't get the humor in that one but at least I understood the story there. 
 I also own Good Omens by Pratchett and Gaiman, I'll give that one a go at some point, but I'm giving up on the Discworld.