It wasn't bad... in fact, it was pretty nice. It sucked that it was inside a dungeon, but oh well, it was good anyway.
The graphics are FAR from stunning in my opinion... but I think I can get used to it. Some of the cartoony effects weren't all that great, and the sense of relism that was in OoT and MM are completly gone. That's not a bad thing though, because I'm not really a fan of the adult temples in OoT anyway.
So far, that has to be one of the best in store demos I have ever played... which isn't saying much, but hey, the best is the best
