Dedication Through Light said:
It doesnt sound too convincing with people saying 20+ hours to finish ONE dungeon, I can only see that its entertaining because one could finally advance after being stuck for so long at one point. The review that convinced me to even look at this game mentioned "each character and event plays a role in a storyline that sprawls like a J.R. Tolkien masterpiece", so really, Id just want a guide to blaze through and really experience the story and world, not to solve puzzles I guess.
Ocarina's story is indeed nice and charming in its archetypical simplicity, which I actually deem to be a common characteristic of all Nintendo games, but its purpose is almost exclusively to provide a setting.
The excellence of this masterpiece is all in its design: the perfectly-crafted structure, the intricate and yet simple layout of its mazes, the pacing of the adventure, the exploration and the great feel of the controls. It's all in the interactivity, to put it simply.
I don't think the comparison with Tolkien is fair, because Ocarina is in its very essence a videogame, and one which bears no grand narrative intent. It doesn't want to be anything different than a game and it shines in being just that.
My advice is either to approach it with the right mindset, or otherwise (if you
really can't stand dungeons, riddles and pure exploration) steer clear of it to avoid disappointment.