I just watched the haunted house/girl in the walls episode and YES, that one WAS very good. Actually, scariest episode since episode two with the Wangalooloo thing or whatever it was that ran really fast around the tent.
Ep was VERY atmospheric and really scary. I think the fact that we took a break from the apocalypse and angels acting like demons and demons acting like angels made it a welcome relief and showed what the show used to be, rather than the emofest "I did SO MANY bad things in HELLL!!!!! WHAAAAHHHH" show it HAS become, made me miss the old show even MORE!!!!