If you are on the fence about watching 13 Reasons Why I would recommend it only if watch Season 1, consider everything that follows to be just be a Fan Fiction. My rating of 8 is STRICTLY for Season 1.

Season 1 is an emotional thriller, it's genuinely heartbreaking at times, all the performance's are good but Katherine Langford as Hannah Baker just steals the show for me. Dylan Minnette as Clay Jensen plays the role of main character and he makes questionable decisions but he's having a tough listening to the 13 tapes, especially when he gets to his Tape. Honorably mention to Christian Navarro as Tony, his role as the neutral third party making sure the Tapes are played out, and him genuinely wanting to help Clay but can't due to his role as the bearer of responsibility for Hannah's Tape post mortem is heartbreaking at time since you can see he's torn.

Overall Season 1 is an amazing self contained story, watching Season 2 completely retcons major sections for the sake of drama, Season 3 & 4 are just insane fan fiction.