@DrFinkelstein - Those two can become the official spokespeople for the Zelda franchise for all I care. I've really liked every Zelda commercial featuring them so far, despite the cheesiness.
So far I've beaten the game once with the silver keys, and I've cleared the Realm of Memories. I've also cleared the first of the three floors of the Hero's Trial, but floor 2 is brutal. I've also gotten the Golden Key from the Sea of Trees.