I also really need an unbounce alternative. I'll have a look at your site when I get some downtime.
The big problem is you put every feature tahat you have in your app into the video. Thats why its kind of blah. Focus on one tihng you do based on which suorce the user comes from.
If he's coming from HN then just test your business should be enough. The user will find the other features as he explores.