The document discusses prioritizing features for software products based on customer needs and feedback. It recommends using the Lean Startup methodology of quickly building, measuring, and learning from customers. Product managers are advised to empathize with users, understand what problems users want solved rather than features they ask for, and prioritize features that will trigger feelings of satisfaction over those that are merely expected functionality. The Kano model of classifying features into basic expectations, satisfiers, and delighters is referenced as a way to determine what impacts customers and where to focus development efforts.