Very honest. The writers didn't hold back, and they gave us a painful, complicated, genuine, character-driven story to chew on. Unlike with (admittedly lovely) fluff, if there's a happy ending, it will be well-earned.
The pacing was perfect, they didn't rely on any stupid editing gimmicks or forced drama, the acting was impeccable, the cinematographic choices made sense and added to the scenes, and the writers had a firm and loving grasp on all their characters.
This story is not easy, but it may help you grow as a person. I love it. Actually my first review got deleted, but I love this season so much I found the patience to rewrite it.
You can't know this, reader, but I'm excruciatingly critical. I have no complaints, though, so hopefully if you're on the fence, that helps you leap over it and dive right into this experience.