I enjoyed the documentary and liked how they managed to expand their topic from marijuana to a lot of the issues or society is facing nowadays, revealing shocking facts, some of which I ignored. I think it does a great job at informing people about the current state of the legalization debate and what social issues are in some way connected to it, how there has been a lot of manipulation, how it happened and how it continues to occur, after watching the documentary you realize that you didn't just watch a documentary about pot, that was just the starting point and it is just a example.
When I finished watching the documentary, I did what I usually do after watching a movie, opened IMDb, voted and checked out what other people had to say about it (my major is psychology and my minor is cinematography and took some documentary classes at the university). I was instantly amazed by the huge difference between user score and the metascore, so I continued to read some of the metacritic reviews and I was surprised by how unfounded and fallacy-based all the criticism was (reading some of the reviews I felt like they didn't even watch the full documentary or they were people with poor understanding of the subjects - cinematography, documentary and/or the topics discussed on the documentary).
Personally I rated the documentary with a 9, because I liked how they exposed their ideas in a fun and simple way, keeping it close to the public, sometimes laughing at a joke and other times feeling the pain and emotion from a heartbreaking story. Also I liked the footage they used, the only aspect I didn't like was it's length (I found it to be a little too long, extending too much on some topics) and that it was centered on the United States scenario (which I totally understand).
My personal conclusion was that those reviews are only more proof to what the documentary trying to point out.
Thank you for reading and please excuse my grammar since I am not a native English speaker.