"build stuff and talk to users" is so simple but great advice. For my first successful startup I did the marketing and build and my partner focused on the user

"build stuff and talk to users" is so simple but great advice. For my first successful startup I did the marketing and build and my partner focused on the users. And we crushed the incumbent in under 2 years completely bootstrapped and they tried to buy us. Now I have a new startup where I'm handling the build and the customers and another partner is focused on the marketing. It's a subscription business and talking with users helps retention, acquisition via word of mouth and also product development. Do it even if you'd rather be spending that time building!