I have! I agree with u all the characters are unlikable or lack personality(think Yuriko's mother.) I thought it was even better than out. I think the main message was that the world lacks love. But just like in out i only have a vague understanding of what the ending means.
good choice, have u read grotesque? It even better ! It about how two doomed prostitutes try to search for love in a world designed for men, it has has the same sort of cliffhanger ending. That left u thinking where the hell is Masako going to go?