Despite the negativity surrounding this show and ultimately the change in tone after the first season, I must say I was quite pleases with the last season. Season 1 dealt with very delicate issues and overall addressed these issues appropriately. Season 2 and 3 felt a bit forced in terms of extending past the original story line based from books but was watchable and did keep you curious without knowing the endgame. Season 4, which just came out, was something I was excited to watch but also hesitant due to how far season 3 had separated from the previous two, but after a slow start it really picks up and deals with some intense issues especially in American school culture (I am British) and the last episode really gives some closure on an overall great show.