I consider Clouflare to be the least reliable cloud service provider out there. So many CDN and DNS related outages thanks to poor engineering release practices. Considering those are their bread and butter services I wouldn't ever rely on any of their other services.
It is simply incorrect. We have most of our customers on Cloudflare and the larger customers are on enterprise deals. My only criticism to Cloudflare is simply that it is just not as stellar as some of the more expensive alternatives. It is not a high end service but still the right choice for a lot of sites.
When it happens, it breaks a lot of the internet, but "so many" is stretching it - the entire CF network has only gone down a couple of times in the time I've known about them (~6 years).
They extensively use Cloudflare, other than for voice channels which don't use CF's tcp/udp proxy (to minimize ping, since GCP is usually peered better globally).
Cloudflare user for all my services here. I can't remember any downtime ever outside of the couple times where they got massive press over it (because, like, the whole internet broke)
