It's nice to see that not only did they manage to phase out the racism we saw in the 2nd movie, but in addition they actually managed to give minorities a significant role in the movie and as a result it made the movie that much better, for me atleast. Who knows, maybe Bay's creds were taking a hit and he's trying save that part of his image.  I did sense a really subtle anti-Obama theme. Outside of that, I really didn't think that they could make a third movie about robots fighting in the city work. I thought it was getting old, but apparently he proved me wrong. I think the cold reality the movie portrayed really helped to make the movie work. It upped the stakes. Really missed Megan Fox though.