To be honest, can't say I'm excited for myself, but obviously it's a great thing for the console.
I wouldn't want to stream my gameplay for various reasons. I for one like to control what goes out, once it happens in real life, it's too late to stop it from going into the internet. And nobody really would want to watch me play anyways over a "more professional streamer". Nor do I have sufficient upload bandwidth to stream even in 720p. Then I typically play such short sessions that it's not ideal for streaming.