I've been using Podcast Addict for years and I love it. It was missing one thing that I wanted (sorting podcasts by fewest unlistened-to episodes), so I put in a feature request and it got added after a few weeks!
Same here. I wanted to filter a feed to only get the episodes longer than XX minutes and the developer told me on Twitter that the feature was added pretty recently.
That's also the only app I'm a paid subscriber just to support its development.