I use pocket casts since years. Never felt like needing the plus. Just checked the benefits and I think I am still good. Before a flight I download dozens of podcast to my phone via WiFi and use the list of downloaded podcasts to keep track of them.
I see no need for the following features for me:
Folders Organize your podcasts in folders, and keep them synced across devices.
Desktop Apps Take your podcasts to more places with our Windows, macOS and Web apps.
Cloud Storage Speed up your lectures. Burn through other content. Be your own Podcast DJ.
Watch Playback Ditch the phone and go for a run – without missing a beat. Apple Watch stands alone
Themes & Icons Fly your true colors. Exclusive icons and themes for the plus club only.