Best episode of the series so far -- and the past 4-5 episodes have been getting *much* better. To be fair, I thought the fall run wasn't nearly as bad as some here have claimed. TV shows like this take 8-10 episodes to catch a stride. People keep comparing Arrow to MAOS -- and no one seems to remember that Arrow blew donkey chunks for the first year, until their 'undertaking' -- which was only marginally better (really quite cheesy though).
I think, at the end of the day, last night's MAOS is a hint of things to come. They were always thinking the long ball with a Cap tie in...and the fact that we were made to wait for it is great. It made last night's episode that much more special.
The next 4-5 episodes will likely center around Coulson's world getting upended -- and that's a good thing. When the show centers around him, it has an anchor. The show was at its lowest when we saw May and Ward He'ing and She'ing.