https://www.reddit.com/r/SaaS/comments/1lwbn9f/the_real_problem_founders_fall_in_love_with_their/

Here’s a brutal truth most SaaS founders learn too late:
Startups don’t die because of bad execution. They die because they solve problems no one really has.
Think about it — how many products have you seen with slick UI, decent traction, even funding… and yet they quietly fade out?
That’s because the “solution-first” trap is real. We build a tool, believe it’s awesome, then scramble to justify its existence — often using vanity metrics like signups, impressions, or “early buzz.”
But there’s another path. A smarter one.
Instead of obsessing over your product, obsess over your user’s pain — and let that pain point tell you what metric matters most right now.
Lean Analytics, by Alistair Croll and Benjamin Yoskovitz, isn’t another “startup inspiration” book. It’s a tactical handbook that teaches you:
Whether you're at 10 users or 10,000, this book meets you where you are — and shows you how to get to the next stage, with data that actually matters.

The book introduces a five-stage model for SaaS startups. Each stage has one job: identify the riskiest assumption and fix it — fast.
What hurts your users the most?
At this stage, you’re not optimizing — you’re listening. Talk to 100+ people. Ask questions like: