This starts out as a really interesting movie about four Japanese 30ish women and how they (mis)manage their lives and the lives of those around them in search of things we are never quite sure of. The film is very good at bringing you close to their world, but keeping you at arms length at the same time, and the characters take turns in being more or less likeable/relatable, but often come off as aliens floating through contemporary Japanese society and trying to communicate (or not- "communication" is the key theme).
I don't know the reality of said society, but I have met enough alienated and unhappy people in my own to suggest it rings true, specific cultural issues non-withstanding. That part of the movie was fascinating, including insights into family, divorce, relationships, honor, etc.
But the issue is not really the five-hour length, probably used to suggest the real-life unwinding of issues; although it doesn't help. For me the main problem was the long expository conversations/monologues, the many side stories and secondary characters popping in and out, the serious issues that come up with no background (that they have often no resolution is fine by me), and the fact the the actors often seem more part of an acting experiment using amateurs, than players in a movie, which actually seems to be the case. Most actors do a fine job (some are more wooden), but it does feel like an exercise.
As a "completist" that watches all movies to the end on principle, I nevertheless felt I would have gotten the same messages by watching any 90-120 minutes of the whole length.
