And I don't think that's for some (trying to be) deep or pretentious reason. I think you have to remember that the storyteller is intended to be recovering from a traumatic brain injury. So we are being told a story through the lens of someone who has a contentious relationship with reality and an, at times, skewed perspective of people, objects, and the relationships between them. So the insanity (I mean that literally) blends with the story in a way that is inextricable and unpredictable. This is actually why I loved this movie. It is completely unpredictable ... I had no idea where anything was going until it got there, fantastic.
It's not for everyone and it's not some deep meaningful opus ... it's just a bit of fun insanity to take you away from the un-fun insanity of the real world.
The acting is solid (except for Megan Fox whose career will end when her looks do because that's all she relies on), it's wonderfully shot, and the soundtrack is oddly appropriate for the chaos it tries to imply.
Overall, solid film for a fun afternoon streaming at home. I would not pay for it though.