I've watched it. My opinion is one of someone who has been sexually assaulted and suicidal.
The parts that made you uncomfortable were meant to make you uncomfortable. That's the point. They didn't want to shy away from things most other shows/movies do. That's the brutality of sexual assault.
I don't see how it glorified suicide. Was it when Hannah was in the tub slitting her wrists, obviously in pain? Or when her mother found her and was utterly destroyed? There was nothing impressive or sexy about any of it.
Yes, there was grieving, but most of it was fake - these people didn't care about Hannah, even after all was said and done. No one really missed her but Clay and her parents, maybe Alex. People were, in the end, putting up a front to save themselves.
I don't know that I can say that I liked the show - it did make me feel things. I think that was the point. I didn't dislike, either.
At the end of the day, I wasn't triggered at all. But my story and reaction is my own and I wouldn't claim that people can or should feel the same way I did. Because of the subject matter and the sensitivity of the topics, I don't think there is a "right" answer.