It's good to see that the author had early feedback and performed interviews. However, looking at an early post at the interview methodology, it seemed like the

It's good to see that the author had early feedback and performed interviews. However, looking at an early post at the interview methodology, it seemed like there was the lack of validation around the product. The author successfully validated the problem, but not necessarily what he wants to build. A good read is the "Customer Driven Playbook" - which details a hypothesis driven model in product development to get more measurable outcomes. I think he should keep at it - but set more specific outcomes and look at smaller sets of things to improve within the larger space.