It's seriously good value for small websites. Basically, there is no cost aside from the domain. And for registering and managing domains, they are pretty much the most affordable option as well. And they have a few other things that aren't half bad to use with pretty generous freemium layers.

We used Google's CDN for the last six years or so but it's pretty annoying to deal with and you have to pay for a load balancer every month in order to properly use it. That adds up to quite a bit per year. Even if all you are doing is routing domains to some bucket with a website.

We migrated most of our gcloud stuff to Hetzner beginning of the year. That left a load balancer and a few static websites hosted in Google buckets. I migrated all of that to Cloudflare just a few months ago.

I still have a few buckets in gcloud proxied via a vm in hetzner with a proxied domain in Cloudflare. Not the most elegant route but it works. I might optimize some of that later. At this point, we pay for some Google buckets and not much else in gcloud.

Honestly, Google and AWS need to start paying attention to Cloudflare more. Their complexity is chasing people towards Cloudflare. The hoops you have to jump through with both of them to host a simple website with their CDNs is embarrassing. I've gone through the process with both of them. Although my experience with Route53 is a bit stale at this point. On Cloudflare, getting an new website up and running with a freshly registered domain takes only a few minutes.