The best feature of a product should really be the customer service.
It's simple until you make it complicated.
What you do is what matters, not what you think or say or plan.
You don't need to win every medal to be successful.
The only two people who can give you real feedback about your product are people who just purchased it and people who have just canceled.
Unless you are a fortune-teller, long-term business planning is a fantasy.