I gave this episode an 8.5 rating. I particularly enjoyed the Myka/Claudia mission to search for the artifact responsible for disintegrating people. The way the plot line proceeded about the young woman who thought she was causing people that were giving her trouble to be vaporized was very well done. The actress portraying that woman did a great job and the ultimate cause was nicely plotted as well as another very cool artifact.
I wasn't quite as enamored of the Pete and his mom "dream" plot but it was still quite good. I have to admit I have a bit of trouble with these "dream" sequences but it did end up being critical to Pete's relationship with his mom, his dad, and the overreaching arc of the Warehouse itself. It also ended up providing us with the motives and actions of the, until this episode, mystery man plotting against the Regents. I must admit that development has clarified what is going on and will provide more stories for future episodes. The bad thing is the season is rapidly coming to an end.