I loved this episode, and I wasn't sure I would. It just felt right--but was sadly lacking shirtless Sam. It was like the pieces of a machine which had been stalling and sputtering a bit were back to working in perfect sync again. I badly want to give Jensen lots of credit for this, but I just don't know enough about directing an episode of TV to know how much of it was due to him. I thought it was well-written and well acted.
( episode 6.04 spoilers )
I think (wild imagination warning) that it looked like Jensen ran a set where everyone was comfortable and having a good time working and it showed in the end product. So Yea! my show seems to be hitting pretty well so far.