Visually I loved every bit of the movie, but I found myself not particularly caring about the mystery of the Zone/Room all that much. Which is kind of the opposite I expected to feel about the movie going into it as unexplained sci-fi mysteries are usually exactly what I'm interested in seeing. I never felt like the reverence they have towards it is entirely earned.
The ending was the one part of the movie that really made the Zone/Room feel otherworldly to me. All of a sudden the daughter having telekinesis is like the first thrown nut along the path I really wanted to follow. Was it just from her father constantly flirting with the zone, bringing something back with him that's affecting her, or did he actually make a wish and this was the old monkey paw outcome.
It probably doesn't help that I watched the movie over two nights.