I really enjoyed this film and decided to watch it even after reading a lot of bad reviews and I'm really glad I did. I went into it not really knowing what to expect, but thoroughly enjoyed the authentic-looking footage and camera angles it is shot from.
Granted there wasn't THAT much of a story, but I think knowing that this is supposed to be "lost" footage from a moon walk that went wrong is enough. I certainly didn't watch this with any pretense that I would believe anything that unfolded.
It succeeded in gripping me for the whole duration with pretty decent acting and a long, with bated breath, wait for some answers!