The UI is the best part. All of our production processes, prefect or not, send error messages to slack. Our team members rotate being on call, so if an error message persists in slack, whoever is on call has to investigate. With most of our processes, the on call person has to get out their laptop, track down logs, etc. If they are in the middle of something, such as dinner, friends, etc, they have to go back to their laptop to handle things. With prefect, I am easily able to go on my phone when a prefect error comes in, log into prefect, and take care of everything I need to right there. An ios app for prefect would make this even better than it already is.

Easy to deploy in multiple environments(ecs, kubernetes etc). Easy to test locally(not really possible airflow) Developer community is pretty strong

I like how many things already come from the beginning blocks, webhooks, etc