I couldn’t emphasise this more. Stick to the YC mantra: always talk to users. Ask them what they want or have problems with, quantitatively (questionnaire style

I couldn’t emphasise this more. Stick to the YC mantra: always talk to users. Ask them what they want or have problems with, quantitatively (questionnaire style) and qualitatively (talk to them in person, real user testing). Added a new feature? Don’t assume it’s well designed. Assume something is wrong with it and that it can and should be further optimised and sweat the details. Details matter. Unless you sweat the details, users will notice.