It was nice seeing them [Sam and Dean] not only working together, but falling into their niche roles. The two have grown and progressed through countless big events, but they still manage to hold onto their trademark characteristics.
If the Supernatural season 7 premiere represents the caliber of storytelling that will be executed for the remainder of the season, there's no doubt that this may very well be the best year that the series has presented yet.
When Supernatural episodes are at their finest, the hour seems to fly by, and that was the case with "Survival of the Fittest." It was an engaging and tense hour from start to finish with satisfying pay-offs.