I like this concept in principle, however, a lot of the questions imply we know the bigger picture. There's a lot of confusion over the ending, if we don't know the signficance of the mass relays exploding (for example) then how can we judge whether that should be allowed to be presented in the ending?
For me, I am satisfied with the endings as is.. however, I would really like some explanations on what happens afterwards, some clarification on what really happened. Did my companions really die on the way to the beam? Does the ending choice matter? How does the galaxy move forward from this point?
While I would love more detailed explanations on specific companions and what not, the bigger, broader stuff is the most important. In the end, Shepard achieved her goal one way or the other and in that we do have a conclusion to the story. But there are still questions to answer.