So most people who have invested time and effort into the Mass Effect franchise at least think the ending was anti-climactic and self-defeating at best. Some have even taken Bioware and EA to court claiming that they were promised consequences to their decisions and resolution, neither of which made it into the final product.
I myself find the endings to be suicidal to the franchise. I love the characters and the way I have interacted with them. I made difficult decisions for what I thought was the greater good. What I got was well; I could take this and turn it into a huge lecture and so could almost every other Mass Effect fan. Instead, YouTuber Angry Joe has put everything wrong with the ending into a fantastic video that sums up thousands of angry gamers words perfectly.