I really enjoyed this episode, it had a light-hearted feel but still managed to carry the main plot along. I thought it was cool to introduce another new creature, the phoenix, and it is interesting how it was also in human form, like the dragons.
Dean was truly in his element, playing up his love of the Wild West and being met with disappointment. I loved the cultural references and the whole atmosphere of the episode, it was very well done and a great place to go.
I thought Samuel Colt was portrayed in a realistic and logical way, a jaded hunter made famous for his gun but only long after his death, it was amusing to see him nonchalantly kill the demons when they didn't leave and take Sam's revelation in stride. I did think it was cool that he sent the package, albeit a little predictable and cheesy, but it was a good way to end the episode after the feeling of despair that the brothers had failed when they had come so far.
Lastly, we got to see just how grim things are for Cas, as his top lieutenant turned against him after trying to help him and he did it to protect whatever dark deed he is concocting. I believe it is the same "soul machine" Fate was talking about last week, but I can't wait to hear the full story in two weeks. Now that the brothers have what they need to confront Eve, it will be interesting to see how it all goes down, and if they can win now or leave her character around to toy around with them until the finale. Overall, a greatly fun and entertaining episode that shows that not every single plot moving episode must be dark and grim. A 9.7/10