Uncover the journey of achieving 100% unit test coverage in our mission-critical .NET services. Four years ago, amidst controversy, we embarked on this ambitious path. Today, we deploy multiple times daily with minimal regression issues. Delve into the rationale behind our decision, the technical and psychological hurdles we overcame, and why we're not stopping at 100% coverage. Learn how we're pushing boundaries to elevate test quality and ensure system robustness. Don't miss out on this opportunity to explore the evolution from coverage to excellence in testing practices.