What can you say about this episode that hasn't already been said?  More of course, because you haven't heard from the "Supernatural" pundits yets at TV Fanatic.   Myself, Nightsky, Christine Laskodi and Sean McKenna all enjoyed having a good episode to ponder the finer points.  After all, we had favorite scenes to gush over, Dean's memory plot line, Rowena's motivations, and the fact the that villains of the week were dumb and weak.  We were given a lot to work with! 
Also, here's Sean Mc Kenna's review.  He gave it a 4.1 out of 5.0, definitely not impressed with the final scene as much as I.