The episode was good, it just feels like a little bit of a letdown after the huge events of the previous 3 this season. But you can't go balls to the walls all the time. I think it was far superior to much of Season 2 and 3 - because the writing on this show has really improved.
I agree with this completely. It just seems so much slower when you go an entire episode and only see a couple main characters. There was actually quite a bit of action in the episode.