The only other Italian one I listen to is Learn Italian Pod. It's pretty good and got me learning quickly when I was an absolute beginner, but new episodes aren't released as often as I'd like and there aren't any advanced-level lessons.
I'm a complete language geek, so I also listen to a ton of other language learning podcasts; JapanesePod, Daily French Pod, SpanishPod, Notes in Spanish Advanced and My Daily Phrase German. I'm addicted!