You can watch it via Youtube here, but embedding is disabled. here's a trailer:
Variety says it "looks cheap and lifeless". The Japan Times says it "feels formulaic" and that "Nakata is not striking out for new territory, but rather returning to all-too familiar ground, where surface modernity masks a traditional belief structure that has proven remarkably durable." HorrorNews.net says, "Overall, The Complex is a serviceable movie that’s overshadowed by much greater, and better attempts."