I’ve already finished the game, I picked it up November 24th, finished it Friday night.
I’d talk about it, even though I have to make the whole damn thing a spoiler field. 
First off, final dungeon/boss spoilers. I won’t reveal any identities, just desribe how it goes, and how I felt about it.
[SPOILER]The final dungeon is neat, though short. I especially like how there’s two musical themes intermixing in the background, and as you go deeper one fades out while the other gets louder. You’ll know what I mean when you get there. The final battle, though, felt pretty lackluster. There’s four parts to it. The first part is probably the most interesting due to WHO you’re technically fighting, but again, I’ll leave that for you to find out.
The phase of the battle plays similar to the first phase of the Ganondorf fight in Ocarina of time, in that you have to reflect energy balls back to your attacker. This part is short.
Part two relies on your ability to hit a fast moving target with your bow and arrow without Z-targetting. Remember that second dual on the Hylia Bridge? Kinda like that. The second half of this phase forces you to go into wolf mode and you’ll be using Midna’s GIANT HELMET HAND to try and grapple with the boss, much like you did with the Gorons on Death Mountain.
Part three is on horseback. I’d elaborate on this more, but I don’t want to reveal much. What you have to do here SEEMS like it would be a pain, but if you’re quick this part ends pretty easily.
Final part is a one-on one sword dual. Back Slice works wonders in this fight. You have to be offensive if you want it to end fast. If you play defensively in this fight you’ll never get it done.
Though those four parts make it SEEM like a long final battle, it’s all actually pretty short. And I was also disappointed in how EASY it was. This is the first Zelda game EVER where I wasn’t beaten at least once. I got through it all on my first try. So it was kind of a let down in that department.[/SPOILER]
And now my general thoughts on the ending, and the game as a whole. Again, I won’t give away many specifics and I’ll try to be vague.
[SPOILER]The ending left me a bit underwhelmed. Granted Zelda games have never been about the ending, it’s GETTING to the ending. But even so there was little satisfaction in beating the game. It seems like the very last part of the game was tacked on, actually. I really can’t say more without spoiling everything that happened. But it feels like one of the most unimaginitive finales the series has seen. The ending, and the game itself, really, did little to add to the entire Zelda lore. The entire game feels less like a major chapter in Hyrule’s history, and more like a footnote.
The gameplay and the game itself is huge, and lots of fun. I’m not bashing that. But the story, ESPECIALLY considering how the last parts of the Wind Waker was, feels much flatter. It honestly feels to me like Nintendo had one idea for the story and started producing the game, then half-way through production they changed their minds drastically and as a result the very end of the game just doesn’t feel like it FITS.
Hardcore Zelda fans would probably roast me for that. But I’m not bashing the game, I enjoyed it immensely. But it’s just that the overall story feels a bit lacking compared to what Nintendo has done with Zelda lately.[/SPOILER]
Well those are my uber spoilery parts. I still have to get one final Heart Piece, and lots and lots of Poe Souls yet. I also haven’t tackled the optional dungeon, but right now I am busy with Castlevania Portrait of Ruin, so I’ll get to all that later. 