Rootless is really the big selling point for me. Means I can just let gitlab CI log in as a specific user to deploy my personal apps, without someone compromising gitlab/my gitlab account giving them root on my personal servers.

The other advantage is that it can setup containers based on kubernetes xml file or export a local setup to a kube xml file. This is because Podman is really aimed at the small scale setups - if you would have used docker-compose with docker, you might consider Podman, but the export lets you prototype with something convenient locally then export a config when you're happy to test on the big complicated tooling.