The great thing about this show is that unlike The O.C. the plot was far more realistic, although at times a little extreme. The characters were far easier to relate to as well as their situations and I found that although it referred to very serious issues in a serious way the show itself didn't take itself too seriously.
What I loved about the characters was the fact that they were all loveable and yet they all had their faults, so they felt more human than characters inother teen dramas. For example Tony was a horrible person, but at the same time I felt I was able to empathise with him, unlike the stereotypical bad guys found in most other shows.
The finale was incredible and completely unpredictable, I was literally sitting on the edge of my seat for the whole hour, and I'm still surprised by what happens everytime I watch it. I can't wait for season 2.