Mark Frauenfelder is pretty fantastic. He's not that easy to listen to; he's definitely not the best podcast host. His stuttering, awkward, slightly uncomfortable delivery might well turn a lot of people away, if you don't know that he's not a 20-something year old nerd that just escaped his Mom's basement. It almost turned me away, until I did more research on the man and have come to find that he's just an eccentric, and a pretty fantastic one at that.
He's like a nerdier Kurt Andersen, or a much less confident Ira Glass, but like those two he's a Renaissance Man, and it's worth listening to just to hear all the things that he's into, especially if you like games and books and comics and building stuff.
I'm getting a little weary of the "sit around a mic and talk about stuff"-style podcast, and I wish that there was a little more Interview in Gweek than there currently is. I also wish they'd hurry up and iron out all their technical issues (with sound, mostly). But it's just begun, and I can't wait to hear what these boing boings are up to next.