I've enjoyed the last few episodes. I like that we're getting different characters paired for storylines -- Carson and Ace is a duo I never thought we'd see, but it worked! I thought Ace seemed like a superfluous character back at the beginning of the series, but now he's one of my favorites -- he's affable and laid-back most of the time, but he'll stand his ground when he has to, and he's smart. He saved the day again!
It's nice to see Nancy actively asking her pals for help now. I liked the twist with the sanitarium security guard being a patient; it made him prattling on to a supposed reporter about a haunting make a lot more sense. I'm also enjoying the continued hints that George and Nick could end up a thing, because I think they have great chemistry.
Amaya seems all right -- she's definitely a jerk, but the kind who respects you when you call her on it, so I'll give her a pass. I liked seeing Bess stand up for herself instead of letting herself get walked all over. If they go the love triangle route here, I won't complain too much (I do hope Bess chooses Lisbeth, but won't Lisbeth be leaving town once the investigation is wrapped up? I remember her saying something along those lines in an earlier episode).