I recently noticed it has the option to import/export your subscriptions, which is useful for backups or if the podcast app you're migrating from supports the .opml file format too.
I recently stopped using this. I prefer paying for things so I know they will be taken care of, but their price increases came without any improvements to the service for a while. If you are okay with paying though, it's pretty good.
AntennaPod is free and has worked well for me so far as a replacement. It isn't as intuitive with its discovery feature, but it works well enough.
It's the only one that I've found that has Smart Play. I'm not sure why not all podcast players have this, it's such a great feature. Going back to something without it, would feel like going back to the stone age.