ME3's ending was the biggest load of crap I've ever seen in gaming. It has nothing to do with it being "sad" - that's fine. However, deus ex machina endings that are completely nonsensical are a BIG problem. If it were one game, it might be excusable as a good game with a bad ending. However, they showed with ME1 and ME2 that they knew perfectly well how to end a game in a way that made sense. ME3 botched it completely - someone with too much power smoked too much weed one night and came up with that crap. I hope whoever that was is gone too.