Other than the fact youve been preserveering (or even thriving) for so long - which is way more that can be said of many solopreneurs or startups - what do you

Other than the fact youve been preserveering (or even thriving) for so long - which is way more that can be said of many solopreneurs or startups - what do you think makes your app/biz so resilient in finding/keeping such long term customers?