I found myself not liking the film very much, despite finding parts of it educational and illuminating.
Particularly, I found it really bizarre that it discusses the stoned ape theory without mentioning any of the criticism or prevailing theories against it. The movie just passes it (and most other things Stamets believes) along as unchallenged gospel.
It took me out of it and made the film feel (even more) ideologically one-sided, despite the fact that the film is full of interesting detail otherwise.