The first season is very well done. The second season feels like an encore to the first and is quite enjoyable. The third season makes no sense and the fourth and last season is point blank ridiculous. It's a shame they went on after season two because the latter two seasons take away from a strong message that this series is trying to get across about awareness around the ever increasing problems with suicide and mental health problems among teenagers. The last two seasons made it feel like they chose commercial gain over sending that very message.