I just finished up my 2nd run on Insanity. I think the last mission save for the Citadel before the end section was 22h 49m. So it was much faster. I actually had more military resources this game and was lvl 50 in the end compared to 48 on my first game.
Also you can get all 3 endings without importing a character. I got all 3 choices this time.
I think if you choose synthesis, no matter what EDI will appear in the end with Joker along with one of your other squad members you used in the last section. But on the other 2 choices, whoever you used will appear with Joker.
I did skip a lot of dialogue. It's all the same pretty much except for the first couple lines. So I tend to skip through most of it. Unless I'm doing something different, then I listen to everything.
I still had fun playing on insanity. I probably wasn't as excited for some of the sections because I've done them before, but the combat was still fun. Also the sections that I enjoy the most were still enjoyable. Although I did go through them much faster. Nothing will probably match the first time you play it because you don't know what to expect. Still the combat was fun and high paced.
Now if I play it more I gotta get creative. I like to try and create my own story or challenge myself to doing certain things in combat.
I do have an idea for a 3rd run. I wanted to try and get as little resources as possible. So it will be a straight shot to the end. Just a bare bone run and see what happens and see how difficult it would be. I think enemies scale with you so it probably won't be that hard.
You can loose missions.
I waited too long on the mission where you save the students. I found out later that everyone was killed and the mission was removed from the map. I just wonder how other thigns would turn out. Like if Jacob would die or would you even know Jacob was there.
First I plan to try out the muitplayer a lot more.