I like to watch informative videos with subtitles at 2x speed because the subtitles make it easy to follow and the increased speed smooths out the verbal tics and idiosyncrasies (less distracting).
This is exciting. Eventually well all have a quantum computer in our pocket (or body?). The exciting thing is what possibilities does that bring? I guess we don't know yet.
I think he was fine at communicating and not terrible to listen to. I just didn't find the talk that interesting or cover anything I didn't already know about quantum computing theory. I wish it did, because there's much I don't understand.
Don't you expect a bit too much from 15-minute-long TED talk? Actually I think it was more informative(and definitely clearer) than a lecture on that subject I had at the university.
I find it is the same with his writing. It just goes on and on. His more technical papers are better, but his blog is just a pain. I guess it takes more work to be brief. (At least for some.)