Very well done, very disturbing. The next day after seeing this movie I feel uncomfortable in ordinary reality, truthfully a tad bit shaken. This however is a tribute to how incredible the film actually is... effective, thorough, stunning... Ari Aster takes no prisoners with this one.
Another note. I disagree with everyone who thinks Midsommar is a simpler movie than Hereditary. The genius of Midsommar is the depth of meaning behind its themes, many of which are subjective based on personal experience.