The document discusses how KISSinsights used customer development to validate their original hypothesis that product managers struggle with doing fast, effective, and frequent customer research. They conducted phone interviews, user tests, and an MVP website to learn that people are not doing customer research, want private feedback and targeting, and it requires developer involvement and is a constant pain. Based on what they learned, KISSinsights built a freemium on-site customer feedback tool that is easy to install and provides private feedback and understandable reporting.