I'll give it a B. The guts and the determination that went into it was A+, but the rest wasn't any good.
The performance didn't appear to come from the heart, and he seems to have a "I'll redesign my personality" approch to all of this which is not very trustworthy. Determination without reflection so to speak.
But he did take a clear position against his misconduct. Very few why's and absolutely no "I'll try"'s. If he falls back into bad habits it is highly unlikely that the press will hold anything back. I thought that was brave move. He is determined to conquer the challenge, but I don't think he has realized what he is facing yet.
I agree with this, but I will say one thing bothered me greatly. There is no doubt this was an unbelievably difficult, humbling experience for Tiger, but for a guy who can come across so sincere and natural when talking with the media, the robotic reading of a pre-prepared speech overshadowed the words coming out of his mouth for me. If he really wants to save his marriage, I hope the apology to his family was a lot more heartfelt.