I have been using Castro 2 a lot over the past two weeks. Don’t know if I’m completely switching over from Overcast — my main podcast app for the last two years — but I haven’t opened it in a while.
What I like most about Castro is how you can have a stream of feeds (called inbox), but only download/queue that ones you’re interested in. This makes subscribing to a lot of podcast a better experience.
I’m sure you can approximate this behavior with Overcast and other podcast players, but there’s something very clean about the way Castro does it.
There’s two things I miss from Overcast: 1) trim silence, 2) the ability to subscribe to podcast from the web.