I started building Jamstack websites in 2015. In the past 7 years I never experienced any downtime. I have built 250 websites with Jekyll on CloudCannon. The speed of the websites and the CMS was quite good, especially when you compare it to WordPress on shared hosting. I also had relatively little maintenance work on my websites and not a single one got hacked and/or got infected with malware. “Don’t change a winning team”, is what they say.