Features Don't Make a Product Succeed
After building for 35+ startups (and watching one of my own fail), the same mistakes show up over and over. Almost none of them are about the code.

People assume the products that win are the ones with the most features. Nothing in my experience supports that. Across thirty-five-plus client projects at Lambdaa — and one painful failure of my own — the products that worked were almost never the ones with the longest spec.
The mistakes that killed the rest were depressingly consistent.
The four mistakes that show up every time
1. Building for six months without testing the core assumption.
The most expensive mistake in tech is building the wrong thing well. A founder is convinced the market wants X. Nobody validates with real users. Six months later, the product launches into silence. The code is fine. The thing the code does is not what anyone needed.
The fix is unsexy: prototype before you build. Five users with a Figma file will tell you more than three months of engineering.
2. Treating "more features" as "more value."
A product with twelve features that mostly work is worse than a product with three features that work brilliantly. Every feature you ship has a permanent cost — bugs, support, onboarding friction, decision fatigue for the user.
The strongest products I've worked on were ruthless about saying no. They had a wall of "things we will not build" longer than the roadmap.
3. Confusing motion with progress.
Daily standups full of activity. Sprint after sprint of completed tickets. A team that looks busy. None of it answers the only question that matters: is the product getting closer to something a user will pay for?
Motion is comfortable because it feels like work. Progress is uncomfortable because it requires you to keep asking whether the thing you're working on still matters. Most teams stop asking after month two.
4. No one owns the customer.
The founder is busy raising. The PM is busy roadmapping. The engineers are busy shipping. Nobody is on a call with a real user this week. The product drifts away from the people it's meant to serve, and nobody notices because nobody is looking.
Every product I've seen recover from a bad first year did the same thing: someone started spending half their week with users. Within months, the roadmap looked completely different — and the product started working.
What actually predicts success
If I had to pick a single early signal that a project will work, it isn't the team's seniority or the budget or the tech stack. It's whether the people building it are in honest, frequent contact with the people they're building for.
Everything else — architecture, tooling, design, feature scope — is downstream of that one habit.
A short test
Three questions to ask about your current project, today:
- When did someone on the team last watch a real user try to use the product?
- What is the one problem this product solves better than any alternative?
- What's on your "we will not build this" list? Is it longer than your roadmap?
If those answers are uncomfortable, the work to do isn't more features. It's the work nobody schedules: talking to users, cutting scope, and re-deciding what this thing is actually for.
That's the work that makes a product succeed. The features are a side effect.
Written by
Oben Desmond Ashu
Full-Stack Engineer · Social Finance UK
Why I Bother Writing in Public
Most people treat LinkedIn as a place to post achievements. The actual leverage is somewhere else entirely — and it took me a year of writing to understand what.
This landed at the right moment. We're three months into a build we never validated. Bookmarking the prototype checklist.
The 'consistency over intensity' line is one I've been trying to articulate to my team for months. Stealing this.
Curious how you decide which prototype format to use — landing page vs Figma vs Notion. Is it gut feel or a checklist?