Pretty good pricing.

Currently using ZeptoMail ($2.5 per 10,000 emails) but if this service by Cloudflare proves reliable once it reaches GA I'd be happy to switch.

Unless I've misunderstood something, the Cloudflare price is like 3x of AWS SES. It probably won't matter for small scale products, but it definitely makes a difference at a large scale.

You have to use AWS though :)

Also Cloudflare is way cheaper compared to eg Sendgrid or Postmark.

Why not use SES?

It is a major pita dealing with the SES team. I originally wanted to send email from my web app (simply notification flow. i.e. you have a new request from user-123) and it is (IMHO) impossible to get past them. They won't tell you any reasons why. (Because they don't want devs gaming the system).

Nothing I could do could convince them that I wasn't trying to do 'bad' stuff. Just gave up and decided not to use any AWS tech.

Just used GMail api to send email.

I just avoid AWS as much as I can.