Even if you don't end up switching, the lesson from this person's experience and the comments here on HN is: Stop being afraid. People make all sorts of excuse

Even if you don't end up switching, the lesson from this person's experience and the comments here on HN is: Stop being afraid. People make all sorts of excuses: it's not secure, it's not reliable, it doesn't scale. These are primarily people who have never touched a server. If they had, they would know actual tradeoffs instead of excuses. So go and touch a server and learn how it works.