I watched it last night, and I have to say I was disappointed. The designs were decent (Monster Lab had some great stuff), but I really think the show overall has gone dramatically downhill.
I think (?) that the show debuted in 2009, and that episode was, by far, my favorite of the three that have been produced. The first episode actually focused on how the designers transformed the houses. I took away at least three ideas from that show and applied them, with great effect, to my own decorating. I felt like, with that show, the designers and families took a back seat to the actual work, and that the episode was created to inspire other home haunters.
This year particularly, the show seemed to focus on the personalities involved rather than the how-to and design aspects, with emphasis on the "high-stakes" (lol) competition between the designers (something that was, as far as I know, totally absent the first two shows). I detest all this kind of manufactured "drama" that these shows are now pushing, attempting once again to recreate the done-to-death reality TV catfight formula for drawing viewers.
Additionally, the designers apparently had access to all kinds of unique props this year to beef up their designs (the trees and bushes in front of the Monster Lab house, for example, which looked amazing, but they just had those trucked in...almost felt like they were cheating, lol...), but I don't think the final product was necessarily better. I preferred the more simple but resourceful props that the previous designers were able to come up with for their designs.
Since the first episode, I've awaited each new episode with bated breath, hoping to take away more good ideas for my own haunt, but I'm coming away more disappointed with each episode. :-(
As a final thought, I agree that the boarded up windows for the witch house were awful. No detail whatsoever - just looked like pieces of vinyl tacked over the windows (which is what it was, essentially, lol...).