The ending was and will always be a complete abomination of an extremely amazing series. They not only dropped the ball with the ending, but they single-handedly destroyed the replayability of the entire series (for me at least) within a space of 10-15 minutes.
For me too.
I would have loved to replay the entire ME series again but I just can't because I know how awful the ending is; it has put me completely off the game and has taken the enjoyment out of the whole series.