Favorite-product prompt: defend the meal ordering app you rely on and improve it

Quick Overview

A favorite-product prompt that asks a PM candidate to choose the food ordering app they like best and defend the choice. It tests grounding the pick in a real use case, explaining what the app does better than rivals, understanding its marketplace and business model, and proposing one improvement with a metric.

Favorite-product prompt: defend the meal ordering app you rely on and improve it

Company: Coinbase

Role: Product Manager

Category: Product Design & Strategy

Difficulty: medium

Interview Round: Other

Which app for ordering food do you like best? Make the case for it: who it serves, what it does better than the alternatives, and where it still falls short. ```hint Start from a real moment Anchor the answer in a specific situation where you actually use the app, such as a weeknight dinner or ordering for a group. Strengths and gaps are easiest to defend when you tie them to what you needed in that moment and what the other apps did worse. ``` ### Clarifying Questions - Should I pick a delivery marketplace that lists many restaurants, or can it be a single restaurant chain's own ordering app? - Should I judge it only as a diner, or also from the side of the restaurants and couriers on the same platform? - After explaining why it is my favorite, do you want me to propose an improvement and how I would measure it? ### What a Strong Answer Covers - A pick grounded in a real, specific use case and a clear user segment, rather than a tour of features. - The particular design choices that make it better than close rivals, each tied to a user need. - An understanding of how the app makes money, and how serving diners, restaurants and couriers at once shapes the experience. - An honest weakness and one prioritized improvement with a success metric and a guardrail. ### Follow-up Questions - If you became the PM for this app tomorrow, which single metric would you watch most closely, and why? - A rival copies the feature you praised most. What would still keep you on your favorite app? - How well does the experience you described hold up in a small town where the app has few restaurants and couriers?

Overview: A favorite-product prompt that asks a PM candidate to choose the food ordering app they like best and defend the choice. It tests grounding the pick in a real use case, explaining what the app does better than rivals, understanding its marketplace and business model, and proposing one improvement with a metric.

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Coinbase
Feb 27, 2026
mediumProduct ManagerOtherProduct Design & Strategy
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Which app for ordering food do you like best? Make the case for it: who it serves, what it does better than the alternatives, and where it still falls short.

Clarifying Questions Guidance

  • Should I pick a delivery marketplace that lists many restaurants, or can it be a single restaurant chain's own ordering app?
  • Should I judge it only as a diner, or also from the side of the restaurants and couriers on the same platform?
  • After explaining why it is my favorite, do you want me to propose an improvement and how I would measure it?

What a Strong Answer Covers Guidance

  • A pick grounded in a real, specific use case and a clear user segment, rather than a tour of features.
  • The particular design choices that make it better than close rivals, each tied to a user need.
  • An understanding of how the app makes money, and how serving diners, restaurants and couriers at once shapes the experience.
  • An honest weakness and one prioritized improvement with a success metric and a guardrail.

Follow-up Questions Guidance

  • If you became the PM for this app tomorrow, which single metric would you watch most closely, and why?
  • A rival copies the feature you praised most. What would still keep you on your favorite app?
  • How well does the experience you described hold up in a small town where the app has few restaurants and couriers?