Been watching since the beta, and I have to say, I love the service but I really wish they took my comments into consideration.
Just saying, my main comment / piece of advice for them was expanding the social aspect of the program. If they made it so that you could comment on the fights, live, and have your comments show up as you made them (in respect to the fights, so if you're not watching a live stream there is no spoilers) to your friends list . . . well, I'd never leave home for a fight again.
All in all, the service is great, but I see a lot of opportunity for them to make it better.
Also, what was with them not allowing fight picks this time around? That really saddened me. I like watching the fights, but the gamer in me likes participating and trying to win!