Mark Oshiro, professional media consumer, is about halfway through The Colour Of Magic now and it's really delightful watching a newbie become immersed in Discworld. And Mark's really enjoying it, it seems. During the videos he makes of him reading the sections it's great to see him pause with befuddlement at the latest strange occurrence, or just in awe of a particularly well written sentence. And there are plenty of those, Sir Terry's a master of stringing words together in a satisfactory manner.
The discussion pages are really fun, too. I have the same username/avatar over there so say hi :)
Edit: Mark is really liking the puns, too. Something Sir Terry's also the master of.