This isn't going to be a proper review, because I'm not going to go into the particulars of any of the three and a half books I've read (because I'm line editing my thesis again again again before I hand it in this week), but I wanted to write them up anyway, because the series is so fantastical and I need a break from deleting commas. Why do I use SO MANY COMMAS?
One funny thing about me and I think about a lot of other people is that we don't always read / watch movies / listen to music to experience something completely new as much as to be able to recapture the feeling of discovering something we already love. That's why our tastes are pretty predictable. I'm always chasing the feeling described in that horrible song, "I Knew I Loved You Before I Met You". I am always wishing I could read "The Hitchhiker's Guide to the Galaxy" or Ursula Le Guinn's "A Wizard of Earthsea" over again for the first time. Like everything I already love, but also totally different and new: that's what I want sometimes. That's what Discworld totally is.
The Discworld books are parodies of the fantasy genre. The books I've read feature some standard fantasy characters (dragons, trolls, dwarves, undead people), but rather than, I dunno, fighting for the Iron Throne of Mordor or whatever, they live in an extremely dirty, capitalistic city-state called Ankh-Morpork, which owes more than a little to Medieval Florence (complete with its very own Lorenzo de Medici), and their concerns are totally normal, human ones. There's many dive bars and a lot of bad coffee. The characters are the sort that you talk about with other readers as if they were real people you both know. You should really, really read these books. You're going to feel so good about this decision.
Just like I'm going to feel good about my decision to tango with Mr. Thesis again, right? Right.