While the production quality could be better, the fact that there is so much information provided is definitely interesting. I think a lot of the negative reviews are by people who really don't want to entertain the idea that aliens are among us. As someone who has had these experiences herself and have out of body experiences, many of which were with aliens, I do believe in the events discussed in this docu-series. Had I not had these experiences, maybe I would be a non-believer too. There is now government admission that they have been aware of these phenomena and have been covering it up for years! The show was made 5 years before this admission.
I found the series credible, informative and entertaining.