The Interface Report

A paid weekly newsletter delivering sharp UX research, usability findings, and design critiques for product teams who want to ship better in...
1 joined
Profile picture
@crispcellist0bProfile pictureJul 23

Launched: The Interface Report — 20% off for the first 50 subscribers

Just launched The Interface Report — a weekly newsletter delivering sharp UX research, usability findings, and design critiques for product teams who want to ship better interfaces.


For the first 50 people: use code LAUNCH20 at checkout for 20% off.


One-time access: €210.99 → ~€168.79 with the code


Inside you get the Research Vault (usability studies, teardown breakdowns, research you can actually cite to stakeholders) and a members chat to ask questions directly.


Code expires Aug 6, 2026. Check it out:

Profile picture
@crispcellist0bProfile pictureJul 23

The most expensive UX mistake PMs make: skipping the 5-second test

Most product teams ship a redesign, watch conversion dip, and spend two sprints arguing about why instead of just testing what they already had.


Here's the cheapest research method that most PM teams skip entirely: the 5-second test.


Show a user your screen for 5 seconds. Take it away. Ask three questions:

  1. What is this page for?

  2. What would you do next?

  3. Who is this for?


If your team can't agree on the answers internally, your users definitely can't either — and that's the tell you're about to ship confusion, not clarity.


The reason this gets skipped isn't that it doesn't work — it's that nobody owns "quick UX validation" on most product teams. Design owns polish, PM owns roadmap, and usability testing quietly falls into the gap between them.


If you're a PM and you don't have a UX researcher on staff, this is the one thing you can run yourself, today, for free, with 5 people in Slack. It won't replace real usability research — but it will catch the top 3 things that would've embarrassed you in a QBR.


Curious what other teams use for quick validation before committing engineering time — drop it below.