Resend excels in being a product that does one thing well: sending emails.
There's no unnecessary complexity, no bloated features we don't need. Every feature added is one we actually use. As a business, we want to pay for a service that sends emails reliably, and Resend delivers exactly that.
People expect emails when things happen. When orders are filled, we send them emails to let them know; it lets them know they have compute. If those emails didn't reach them, they'd be sad and think they have compute when they don't.
Integrating with Resend was straightforward and filled with delightful little experiences.
Initially, we were only missing the ability to send scheduled emails. At first, we had to build this ourselves, and I wrote some hideous thing in Postgres that would let us do it. About a week later, the Resend team shipped what we wanted: the ability to schedule emails. We removed our hideous, buggy code and started using Resend's scheduler feature. It was great!
If I had to describe Resend in one sentence, I'd say it's the only good email API.