I quite enjoyed the ep and Mystery. The whole monster thing is well good, we reached a stage where monsters weren't a threat at all especially after Dean came out of purgatory so the concept is sort of bringing newness.
The thing i didn't like was the Mary and Bobby drama, i just don't care. I think the Kripke, Gamble era was very bold, even though we joke about how much Sam and Dean die if you remove the goof deaths of Dean in mystery spot and Sam's in wishing well episode, the deaths meant something very big each time. Carver was ok with it too. It just feels like Dabb is trying this sticking to old characters thing too much. It's honestly taking away from what grounded the show. Bobby and Mary are not good additions. They would have been great for nostalgia for a one time thing but not this...Cas was the main problem of not letting a character go, then Crowley but fine it was understandable, they were basically leads too... This is too much. Let characters go.
Also seems to me that the thing had only one way of dying and it wasn't done... Strange.
