For the type of game that it is, I would have preferred it to be slightly longer. Taking out all of the side quests, and diversions, I probably only spent 25 hours on the main objectives. Of course, the travelling is less time-consuming than Wind Waker, so more of the time was actually spent playing, and not getting from A to B. Still, there was quite a bit of that, too.
I do like short games, as well, but for what are supposed to be epic adventures, I prefer something a little longer.