Cool demo video. At first it sounded like gibberish, then words started coming into focus, by the end I was amazed at the density of information being communicated.
My advice: you are innovating in the speaking/presentation style, and that is pretty slick; if you care about it, bring it to the forefront by lowering the music level by half. If you don't care about the voice enough to put it far in front of the music, put the words on the screen so people can just mute it and read.
Wanted to try something different with regard to getting over product features and the pain points it relates to!