Positives: A detailed look at what much of small town life in China looked and sounded like in the 1980's: government speakers constantly bombarding the citizens with announcements, party propaganda and tinny music, buildings made of grey mud-like brick--miles and miles of them, old bridges, and because of the season, few trees. It's grim, and so are the lives of the young people who want to do something with their lives other than wait for something to happen.
Negatives: Shots of landscapes and a few people who barely communicate go on for what seem like forever, and to someone used to the MTV school of constant image manipulation, these often gloomy meditations may make you wish to run screaming from the room; character relationships are poorly delineated (and that may be the filmmaker's point--in that atmosphere, they can't be!), and for my taste, there are not enough close-ups to bring the story home.
Platform is an honest, personal film about a time and place in China, and for many folks, that will make it worth watching. It would be a fascinating project if other talented film makers all over the world could spend some time in their own little favorite towns and come up with similar documents: Moabi, Gabon, for instance, or Amarante, Portugal, or La Mesa, California.