I did a post about why you must watch this tv series, but i still did not talk about it properly, i watched it because everyone suggest me it and the internet is full of good reviees, i liked it. I liked the soundtrack that remind me to Donnie darko movie, i liked the way that tv series treat big and dark matters in a delicate way. If you still do not watch it you must konw that this series is based on the book : Thirteen by jay asher. The story is around a girl who commit suicide, this girl leave behind some tracks and one of his closest friends Clay listen to them and we can say he his the main character of the tv series, when he listen the trackc there are a mix of scenes between the present of Clay and his friends and the past when the girl was alive, step to step he find out how she suffered, she was bullied and treated not well by her "friends" .
I liked a lot this tv series, also if is not my kind i think it's good that someone treat some matters as bullism and teens depression and anxiety and well, chaos in this delicate way.
So you must watch it but it is not an happy tv series, prepare yourself to cry a bit!