I watched gg's sub when it first came out, just didn't get around to posting until now... Overall I was very satisfied with the last episode, though I will still start with complaints first:
I felt the epilogue was way too quick. It was like LOADS OF AWESOME ORGASMIC ACTION and then O LOOK IT'S OVER. Maybe I'm cheesy for liking epilogues, but it's just that I still hadn't come down from my 'high' and it was already over. I would've liked more ending details!
The medley -- Before watching this I was already hoping for a Sheryl and Ranka duet, which we got. I admit the medley was a clever idea, but while it started out amazing, with "Lion" flowing seamlessly into "Infinity", most of the rest were off-key transitions that grated on my ears. Some of the songs just did not blend well. Not to mention it was because of the fast transitions that were probably what gave me (and other viewers) the feeling of the episode being more rushed than it was. I barely had time to 'get into' a song before it switched, and my ears being forced to adjust to the new pitches. I didn't necessarily hate the medley, but I would've been happy with just a few songs, whether they are new or not. Seeing Sheryl dance along to "Seikan Hikou" was incredibly cute though.
Galaxy is still as mysterious as ever... Not to mention how Sheryl ended up in the dumps there.
Too bad Leon didn't get a more epic death (on screen!).
Also wanted to see whether Nanase and Luca actually hook up.
Some of my favorites...
Micro!Klan in Michael's valk! I can't imagine a melee fighter like her (or Alto even) being as good of a shot as Michael was, but it was definitely a good tribute to him. Alto using it at the end was nice too. One shot, one kill, just like with women... aka Grace.
Ranka fold-slapping Sheryl. Not ship-related, but I found that whole scene incredibly touching. (If anything, it made me want to ship Ranka and Sheryl.) I'm glad they got spotlight together, the two of them singing together on Quarter and Frontier was just awesome.
Luca unlocking his Ghosts!
Kanaria's Koenig Monster
The part where Alto and Brera are fighting together
Frontier punching Galaxy
Overall really blew me away. Not everything was wrapped up, but all the good overpowered the bad. I also went in expecting way more open ends than there actually were. And with the way they did the last episode, I did not mind the love triangle being unresolved. In fact the episode really changed my view on a lot of things. The mecha porn was epic, I seriously had a hard time sitting still on my first viewing. Everyone else has said this already but I have to agree anyway: It's been a great ride!