Not sure why so many people are complaining that the show is underrated. I think it's rated fairly for what it is. The characters are acted out well, the time travel is explained really well. My issue with the show is that the characters keep complaining that they can't break the time loop, but whenever the time travelers have a chance to break their loop they don't make the change. I get that the decision would be hard, but the philosophy they claim that they would be willing to sacrifice 1 life or a billion is hypocritical since they refuse to. Watching through season 3 at the moment will update if there are changes.