Cool idea, poor execution.
This movie started out promising, relatable, and funny, but quickly went downhill. They tried to do too much in one movie, and I felt as though Dark wasn't helping Orion to help him get over his fears, Dark was helping him to feel better about himself. The plot derailed and lost me quickly.
The protagonists were okay in the first half of the movie, but by the second half they were just annoying, cringeworthy, and hard to watch, especially by the end of the movie where it turned into a bedtime story.
I don't have beef with kid's imaginations, it's just that it lasted much longer than it needed to.
Although I enjoyed the night characters, I wouldn't rewatch or recommend this movie.