Tarun Sanan has two examples published here, on Zalando and Booking.com.

Improving Product Sense · E-commerce
Solving Size Uncertainty to Improve Zalando Conversion Rates
Eight interviews in Germany, ending in a single conclusion that Zalando's size problem lives on the product detail page

Meaningful AI Improvement · Travel & Hospitality
AI Review Intelligence That Simplifies Hotel Decisions on Booking.com
Turning a thousand-plus guest reviews per property into a structured summary a traveller can read in a minute
Read a few side by side
The fastest way to build product sense from this library is to compare two people who took the same product somewhere different.