Most people will hate it. If you're not most people, give it a go.
There's no bombast here, no big scares and no big laughs. There isn't even a particularly satisfying conclusion. Instead it's oddly relaxing, gentle, amusing, slightly sad, and charming in the way it kind of winks at you, making you feel like you're in on the gag.
I wouldn't argue with anyone who gives this a poor rating. You may well come away feeling you've wasted an hour and forty minutes of your life. But, personally, I've come away with a general sensation of fondness towards it.