Quick feedback: If you change the trailer to show some game play, I think it would improve your conversion rate. As stupid as this sounds, I have discovered I'm too lazy to try the browser version (but not too lazy to give you a reply -- that is weird...) The trailer just didn't hook me and I found myself thinking, "I don't have enough energy to learn how to play the game right now. Maybe later". But I know "later" will never come.

To be fair, I'm not a fan of puzzle games and this looks like a puzzle game. However I think the engagement issue may still affect other people.