When I copy an Podcast URL and then open iPodderX Lite to add a new feed, it is so easy.
I just have to click the plus button and the link is in the box.

What i really like is that it works well with iTunes. I can name the playlist where to put the Podcasts and tell what kind of music it is (e.g. Books & spoken)

As some are in mp3 and some are AAC I have 2 playlists.
When a new AAC file is added I run the "make Bookmarkable" skript and sync then with my iPod.

For me - new to the Podcast World - it works as it should and it is free.