I looked at Wasabi some time ago, but their pricing is a LOT less simple than their headline says it is.

The major caveats are hidden away in their pricing FAQ: they charge a 1TB minimum if you use less, and there's a 90 days minimum retention period, meaning if you update a file a few times you will pay for the full 90 days of every intermediate version. Additionally, they reserve the right to make you pay for egress if it looks like you transfer more than you have stored.

So all in all, Wasabi might be the right fit for you if you store >1TB of files that are infrequently updated and get less than 1 download/month on average. If you fit that use case, I think their free egress pricing is awesome, but it's definitely not for everyone.

Wasabi does not allow you to use unlimited bandwidth. Your egress is supposed to stay close to your total ingress. So if you are uploading assets that will be access more than a few times in the first month, I think you will be out of spec for wasabi.

If I understand right, if you put CloudFlare in front of Backblaze, you get free bandwidth thanks to Bandwidth Alliance: https://www.cloudflare.com/bandwidth-alliance/backblaze/

Wasabi charges a minimum of 3 months of storage on anything uploaded.