Superhuman · Strategy · Senior · 45 to 60 minutes

How should Superhuman measure and drive PMF?

Superhuman is a premium email app built to help people handle email faster and more efficiently. Answer this product management case and get it graded line by line against a weighted rubric.

PMF strategy
Segmentation
Prioritization
Metric design
Insight synthesis

The situation

Superhuman has a small but vocal base of users who swear by the product, but adoption is not broad enough for the leadership team to feel confident about scaling. The CEO asks you, a senior PM, to propose how the company should determine whether it truly has product market fit and what to do next if the answer is mixed. Right now the team relies on anecdotes, usage snapshots, and feature requests from a wide range of users. That creates conflict: some leaders want to accelerate growth and acquisition, while others want to slow down and sharpen the product for a narrower audience first. You need a strategy that gives the company a repeatable way to measure progress, identify which users matter most, and convert feedback into a roadmap without simply chasing the loudest requests. Assume the team can run lightweight research and product analysis over the next quarter, but cannot pause shipping altogether.

What to produce

A 2 to 3 page strategy memo.

Your answer must

Define a repeatable approach to measure product market fit, including the core signal you would track and why it is more useful than anecdotes alone.
Explain how you would segment users, including how to identify the cohort whose feedback should carry the most weight in strategy decisions.
Recommend the qualitative and quantitative inputs you would collect, how you would gather them, and how often you would revisit them.
Show how insights from highly satisfied users and less satisfied users would translate into roadmap priorities and sequencing.
State the decision rules that would tell leadership whether to invest next in broader growth or in deepening the core product for a tighter target segment.

Constraints

Work within the current email product, do not assume a new product line or a major market repositioning.
The team can support only lightweight research, analysis, and a small number of roadmap changes over the next quarter.
There is no single trusted product market fit metric in place today, and leadership needs a method they can repeat over time.

Format

Use short section headers: diagnosis, measurement plan, target segment, roadmap implications, risks and next steps.

How Superhuman actually played it

Superhuman's CEO describes a survey-driven method for measuring and improving product-market fit, built around asking users how they would feel if the product disappeared and acting on the answers. The post explains how the team segmented users and fed insights into the roadmap. A widely used playbook for early-stage PMs.

Measure PMF with a repeatable survey, not a feeling
Segment who loves the product and build for them
Use detractor feedback to decide what to build next

Built from How Superhuman built an engine to find product-market fit by Rahul Vohra.