Audit my landing page like a skeptical visitor

Act as a skeptical first-time visitor who has 10 seconds. Here's my landing page text:

{paste the page text}

1. In one sentence, what do you think this product does? If you're not sure, say so.
2. List the three things that confused you or made you doubt it.
3. Which sentence would you cut first, and why?
4. Rewrite the headline and subheadline three ways: one plain, one specific with a number, one that names the audience.
Don't be polite. Quote my words when you criticise them.