Why Quality Is Growth

Katie Dill

Head of Design, Stripe (formerly Lyft, Airbnb)

DESIGN LEADERSHIP

The Insight

Beauty + Function = Real Competitive Edge

"Beauty enhances functionality. It makes things easier to use, more approachable, more compelling to use. Things that are more beautiful increase trust, you see that we've put painstaking detail into this, and that gives you assurance we care about other details you can't see."

Beauty and function aren't opposites, they reinforce each other
Quality signals trust: detailed design shows you care about things you can't see
At scale: Stripe checkout = 10.5% revenue uplift from design refinement
The paradox: most leaders intellectually know design matters, day-to-day they don't prioritize it

The Framework

5 Levels of Design Quality

Level 1: Does it work? Baseline execution
Level 2: Error-free? Reliably functional
Level 3: Exceeds expectations? Well-rounded
Level 4–5: Surprisingly great? Delightful moments

Most companies stop at Level 2. The best ones push to 4–5
Competition matters: without it, good-enough is fine (horse vs. car)
With competition, details distinguish premium from commodity
Stitching, leather, door sound, button clarity, all growth drivers
Quality bar should match user expectations, not be generic

The Gym Analogy"Do I really need to work out today? Of course one day won't give me six-pack abs. But if I skip it today, what stops me from skipping it tomorrow?" Quality compounds the same way.

Building Trust at Airbnb

The Design Intervention That Changed Everything

The Moment

Month one at Airbnb as new Head of Design: half the design team scheduled an intervention with HR present. They read a list of everything Katie was doing wrong.

The Root Cause

"I hadn't earned their trust. They didn't know they could trust what I was building or that I cared about them."

Katie came in "swinging", pushing changes without bringing people along
The team needed to see she was listening, not just directing
After course correction: Best engagement scores in the entire company in months
Key lesson: Trust is the prerequisite for change. Design change + zero trust = resistance
The fix: Listen first, lead second. Bring people into your vision

Why This Matters for Design TeamsYou can inflict change on people. But if you want lasting impact, you need trust. Design leadership is about earning that trust first through listening and respect.

Playbook

The Product Quality Review

Friction Log: Walk the entire journey, document every moment, screenshot, tag severity
Rubric: Score on usability, utility, desirability, surprisingly great
Color System: Use yellow/green/red not numbers, speeds judgment, reduces false precision
Multidisciplinary: Engineering, Product, Marketing, Design all debate together
PQR Meeting: Review findings, debate scoring, decide prioritization

Key: No FormulaStripe doesn't use a "20% growth, 10% quality" allocation. Instead: hire people with great judgment, advocate quality at leadership levels, let teams decide what moves the needle.

Contrarian

Why Companies Fail at Design Quality

✗Design ROI is unmeasurableINSTEAD →✓ Stripe saw +10.5% revenue from checkout refinement alone. Quality = directly measurable growth impact.

✗Features vs. Quality is the real tradeoffINSTEAD →✓ It's not either/or. Better quality makes features more usable, increases adoption, drives growth organically.

✗You need a formula: 20% quality, 80% featuresINSTEAD →✓ Hire for judgment. Culture + leadership advocacy > allocation percentages. Trust your people to balance.

✗Beauty is nice-to-have polishINSTEAD →✓ Beauty IS functionality. It signals trust, reduces friction, increases approachability, improves conversion.

Based on Katie Dill's episode on Lenny's Podcast. All ideas on this page are from the episode.Watch on YouTube Follow @lil_dill on X

GO DEEPER IN THE EPISODE

04:47 Katie’s pivotal leadership moment at Airbnb 10:55 Advocating for design ROI 16:07 Stripe’s quality focus 17:50 Stripe’s vast scope 18:45 How design enhances utility 21:39 Defining beauty and its role in product growth 26:19 Operationalizing quality 28:44 Katie’s insights from dialogues with diverse organizations 34:47 15 Essential Journeys: Stripe’s method for holistic UX understanding and unified vision 44:35 Stripe’s PQR quality review 46:25 Stripe’s prioritization philosophy 48:29 Measuring impact beyond metrics 50:28 Performance = potential minus interference 54:09 Building and managing large teams 1:01:46 Removing interference at Lyft: a practical example of Katie’s leadership impact 1:06:10 Stripe’s physical workspace design 1:07:41 Embracing bold ideas 1:11:07 Qualities of great designers 1:15:15 Stripe Press 1:19:19 Katie’s parting wisdom 1:23:17 Lightning round

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