I've become a bit of a podcast junkie, especially since the electrical troubles started in my car and the radio/CD player no longer works. I just download podcasts on to my phone and listen to them as I drive. This helps me keep awake during my zero-dark-thirty commute to Port Townsend three days a week. If I'm really tired, it helps keep me awake on the way home, too.
Soon I hope to delve into the realm of podcasting myself, mostly as director/engineer for my historian husband who really needs to have one. That said, I listen to 'casts with an ear for what works and what doesn't; what seems smooth and professional, and what is grating and amateurish. I like short intros with minimal music. I like folks who get to the point and dig into it. I don't like constant background music in a 'cast longer than 30 seconds or so. I loathe team podcasters who talk over each other. I am utterly bored by teams who drone on about in jokes and digressions of digressions. I like people who keep up a steady pace without seeming rushed. I cringe at speakers who punctuate every single sentence with "um", "er", and "uh" over and over and over. Stop that.
I really appreciate folks who add album art to their files. It's one of those "metadata" things that really isn't that hard to add, and it makes for a nice "at a glance" visual branding thing on a smart phone or Mp3 player. I really REALLY appreciate folks who have taken the time to actually give their sound files titles, track numbers, and other markers. Again: this is not rocket science. It's really annoying to have to do this oneself so when one is perusing files on one's Mp3 player one sees things like "The Bobcast_Episode_12_flirting with quirts" instead of "TB20dkhfdkl19dl.mp3" or just "Bobcast". Note: don't go looking for a Bobcast, because I just made it up.
I will go so far as to make my own album art for a 'cast that I like enough to download several episodes of. I like to be organized.