On top of that: doing something that you could hack together 80% of the way over a weekend, but then providing careful attention to detail in terms of user experience and integrations, quality and responsive customer support, and a general intimate awareness of your customers' needs can make it into a valuable product. Many products could be dramatically amplified in their usefulness by way of a couple tiny UX tweaks, driven by understanding of users' problems. In fact this is a main factor in Apple's success, IMO.
Yes, thank you. A handful of years back i realized every huge startup's new product was 90% empty air. Ie, startups would bite off more than they could chew - even huge startups.
Doing one thing well is so much better to me than 100 things poorly. And there's still a ton of complexity and work to do the one thing well, usually. Be it integrations, sub features, whatever - i vastly prefer a full experience with a narrow scope than a "out the door" experience with a huge scope.
And especially today, when tech megacorps attempt to copy every successful product on any of their platforms, doubling-down on doing one thing extremely well is your best defense because that's what they struggle with