I wouldn't call this bad or good. It's a well-made show to say the least. I biggest issue with it is that the audience has a relatively hard time inferring how the characters are feeling without being told directly. The teacher character just kind of tells us she's unhappy in her marriage but her husband seems like a pretty good guy.
The teacher doesn't get caught in the act as much as she just tells someone calmly that she's committing a felony.
Apparently the boy is having issues having relationships 10 years later but it doesn't stop him from getting laid by his sexy high school girlfriend.
I never felt sorry for this kid. I thought he was lucky to have a relationship with Kate Mara. I never really understood why he felt like he was abused.
Its a small story that I enjoyed overall. While the premise is a little gross, it kind of seemed to me that the biggest problem was that they got caught, not that she was taking advantage of him or manipulating him or anything like that.