It's easily my favorite 3D Zelda (though Wind Waker is a close second, losing mainly because of the Triforce Shard questline). It does so much that would be fresh and interesting for any game to do, let alone a game in such a long-running franchise known for being pretty self-similar. As a fan of game design there's so much to talk about and praise in the game it's not even funny.
Is there a way to complete dungeons and finish all activities in the changed zones in a single 3 day period?
Yeah, if you've beaten a dungeon before you can warp right to the boss from the start of the dungeon as soon as you enter it.