Yeah, loved every minute of it.
[spoiler=My Thoughts]The Equalists turning on Amon when he was outed as a waterbender seems realistic to me. I mean, he even had just lied to the with the facepaint he called the burns, and that was revealed as a lie too when it washed off. Everything these people did was for their leader, the one they followed because they thought he'd been screwed over by benders... How would you feel if you'd gone through all this and found out that everything you did was for a liar, one who was a bender himself. Seriously, of course they outraged. They just overthrew a regime of benders because of another bender; by all rights, they should have attacked him too.
As for Mako electrocuting Amon, he was furious. He loved Korra and seeing her get her powers removed made him furious. That rage, channeled into sheer force of will (which I still suspect is how Amon resisted Tarrlok's bloodbending, though he had the fact he was a bloodbender too on his side) allowed him to get that spark. We already knew that Mako was a very powerful firebender.
Speaking of which, loved seeing Iroh II fight; that was pretty awesome. Using the fire jets to hover, hijacking two planes and blowing several more up (one with a direct blast to the torpedoes) and then taking the Amon mask off the Aang statue. That was actually rather hilarious.
Also, I was surprised when Tarrlok showed up, and even more surprised by his sacrifice at the end of the episode. He had realized the error of his ways and knew that he alone was able to end Amon once and for all. That was great, even if it did look like something out of a bad mobster movie or something
I was quite happy that Korra unlocked Airbending finally, and pleased to see my theory regarding a preview screen for this regarding her airbending was spot-on. I also enjoyed seeing all the past Avatars, and also thought Aang was Tenzin. Figured he was there to comfort her. Apparently what he told her is a deep Buddhist belief or something, which makes sense.
Glad to see Asami confronted her father, and I think that despite how she felt towards Mako and how he was treating her, his apology helped matters somewhat and also the fact that she really has nowhere else to go.
Actually, she could probably return home and take over her father's company (since he'll surely be imprisoned for his crimes), but somehow I don't think that would fit her. Maybe she'll sell it to Cabbage Corp.
Also, I TOLD EVERYONE LIN WOULD GET HER BENDING BACK! I KNEW IT! I just had this feeling. Though I had a feeling the Avatar state would come into play, I expected it during the Amon fight, but I was pleasantly surprised and pleased with how it did come into play. Call it a cop-out, but it does make sense. She'd lost her power over the elements, something she'd prided herself on. She was extremely humbled, which allowed her to access the airbending and therefore her more spiritual side.
Oh and it was funny seeing Tenzin's reaction to Bumi being there. Glad to see he retained some of the craziness of his namesake. Speaking of which, I was saddened to see them captured, but Meelo yelling PRISON BREAK!! made it all better.
I do feel sorry for the Lieutenant though. Even though he's done so much to stop the Avatar, to see him betrayed as he was and discover that the Avatar wasn't lying, that the man he'd devoted his life to stopping benders because of was he himself a bender... that must be one of the worst feelings in the world.
So yeah, top moments
-Asami takes down Hiroshi
-Iroh II fighting
-Bumi
-The big reveal of Amon as Noatak to the general populace
-Tarrlok's sacrifice
-The ending[/spoiler]
Also there's this. The comics won't end after The Promise wraps up.
The story continues in "The Search", another miniseries, this time dedicated to Zuko and his quest to discover what happened to his mom.