How would you measure product-market fit for Guest App among luxury travelers

Problem Statement Description

Product context: Airbnb is a travel marketplace connecting guests and hosts; its products include stays, experiences, host tools, guest booking, trust and safety, payments, and reviews.

Airbnb wants to understand whether its Guest App has strong product-market fit among luxury travelers—guests who are considering premium homes, high-end service expectations, special occasions, longer international trips, or alternatives such as luxury hotels, Booking.com, Expedia, Vrbo, Google Travel, and local rental platforms.

In this metrics interview, you are not being asked to design new features or propose a growth strategy. Your task is to define how Airbnb should measure whether the Guest App is truly meeting the needs of luxury travelers across discovery, trust-building, booking, trip preparation, stay experience, support, and post-trip loyalty.

Your measurement approach should reflect the realities of a marketplace: guest satisfaction depends not only on app usability, but also on premium supply quality, host responsiveness, listing accuracy, trust and safety, pricing transparency, support resolution, and whether the overall experience feels reliable enough for high-stakes travel.

The experience should consider:

- How to define the luxury traveler segment and the relevant denominator for measurement

- Core product-market fit metrics across search, consideration, booking, completed stays, repeat usage, and advocacy

- How to distinguish luxury traveler behavior from general guest behavior

- Instrumentation needed across app funnels, booking flows, support interactions, cancellations, reviews, and post-trip feedback

- Cohorts such as first-time luxury guests, repeat luxury guests, domestic vs. international travelers, high-value trips, and special-occasion travel

- Guardrail metrics for trust, safety, host quality, cancellations, refunds, complaints, and marketplace health

- How competitive alternatives and guest expectations should influence interpretation of the metrics

- How the metrics would help Airbnb decide whether the Guest App has strong fit, weak fit, or fit only in specific luxury use cases

The goal is to present a clear, decision-useful measurement framework that would help Airbnb assess whether luxury travelers consistently choose, trust, complete, and return to the Guest App for premium travel needs.