I beat the game tonight. Awesome.
People had been talking about how it's the hardest final boss ever, but I don't agree. I had 4x Health Potion++ with me, but I only used a half one. I also missed his 3rd 'phase'. I like my boss fights to last a looong time, but I guess in this game they did that with 2 bosses after eachother.
Even though the final boss wasn't hard, it was still an epic fight.
I enjoyed every second of it. Great scenery, great looks, great fight mechanics.
The aftermath was great too, I loved how they spent so much time on the story/characters.
And Fi... Fi's great, better than Navi and almost as good as Midna. I'll definitely think of her the next time I play a Zelda game with the Master Sword in it.