I'm afraid that you should have waited a phase or two before posting this on HN. I wonder if users will ever see your next phase. A tip for the future would be to better consider your moment of first introduction. All of the comments in this thread could easily be made by no more than 10 people outside your everyday test environment. Think about family, friends, neighbouring companies who haven't seen the product yet, etc. Just 10 and you might have altered your first introduction from not so much (except info) into a success.