Resend is awesome. Coincidently, my product is launching on producthunt today as well, and I use Resend.
In the past I mostly used Send Grid. I was happy to move to a different alternative that was more developer friendly.
My favorite part of Resend is the straight forward syntax to sending an email and the fact that you can build your email templates in a React component. This makes it much easier to organize, and maintain.
In addition their dashboard is awesome and easy to read. I highly recommend using this.