If you expect this to be like the Discworld books, you'll be sorely disappoionted. I think the people behind this show found a list of characters from the Discworld series, did a very quick google search about them then decided to see how poltically correct they could make the casting and spat out a show.
The characters share names with the books' characters, but little else. Cheery is not a dwarf but a transgender woman, and Lord Vetinari is now a Lady. The only character that comes close to the book is Carrot.
I have no idea why the creators of this show veered so far from the characters' creator's vision.