Well, for those who are curious, I did start listening to it, and it's been growing on me. As a matter of fact, I'm four sessions in now, and the party is wandering around London fighting off strange manifestations of killer fog. So far the campaign is actually working much better than the one-shots were — the players don't seem to be quite as reckless, nor the GM so willing to put them into a "rocks fall, everybody dies" situation.
I managed to find a 4th-edition era copy of Masks of Nyarlathotep on eBay for a reasonable price, and I've been reading slightly ahead as the party has progressed along, which has made for some interesting observations on what they've found, what they've missed, and how the GM is interpreting scenes.
I also noticed that the site's forum had a section on CoC d20 and figured that it would be a good place to get some feedback on Uncanny Midnight Tales, so I signed up and posted a link. I'm curious as to what (if any) response it'll generate; so far the only comment has been "I hate d20, but if I didn't, I'd love your game," which I have to say amuses me greatly. :D
 An unfortunate phrase in a Lovecraftian context, but you know what I mean.