What problem does it solve? Product managers often judge features by gut feeling, ignoring switching costs and whether the underlying user-business exchange is sustainable. This Skill applies Yu Jun's user value formula (new experience minus old experience minus switching cost) and transaction model to turn vague product questions into structured value, cost, and utility trade-offs. ## Core Features & Use Cases - User Value Assessment: Estimates new experience, old experience, and four switching-cost dimensions (learning, migration, trust, habit) to judge whether a feature or product can win. - Transaction Sustainability Analysis: Maps what users pay (time, money, attention, privacy) versus what they and the business receive, flagging growth propped up by subsidies or degraded experience. - Decision Under Uncertainty: Frames trade-offs as expected utility times probability, recommending low-cost steps to reduce the most critical uncertainty before committing. - Use Case: Ask why users won't migrate to your clearly better product, and receive a switching-cost breakdown identifying the actual blocker instead of a feature-stacking plan. ## Quick Start Ask the advisor to analyze from Yu Jun's perspective why users are not switching to your product despite it being better.
