Got it for 20€ as it's 50% off... Only played it for like an hour last night, but I'm truly hooked. Looks like it will be a great and complex story. In fact, it actually feels more like an interactive story/cinematic experience rather than a game, so it might be not for everybody. It helps that I am very interested in the subject matter in general, too. What I really like about it is that when you finish a chapter, you are shown a flowchart which reveals all the possible endings based on all possible specific decisions, so you get the feeling that your choices actually do matter...