A line about what you do and who you do it for. People buy from people, so this page is worth writing properly.
Two or three paragraphs about how you got here and what you have learned. Concrete beats clever: what you used to do, what changed, and what you can do for the person reading.
Only put figures here you would be happy to be asked about.
Every price is on the page before anyone hands over an email address.
If a paragraph will do, nobody gets a video.
A refund worth arguing about costs more than the sale was worth.