Well, I've recently played an adventure called Station S. I'm planning on running an adventure called "Kiss of Blood" soon, once my other D&D campaign is over. (I have two biweekly D&D games I run, and one is nearly done, and once that one's done, I'm planning on switching the other one to weekly, but first I want to run this adventure for that group.)
A friend of mine sent it to me, knowing I'd like it. It's become sort of server meme that I like lesbian vampires, hahaha. I think he'd had the adventure printed, and the print service sometimes sends multiple copies. (If one's a bit flawed, they'll just send it anyway, together with a good print. Otherwise, they'll have to throw it out. I once had a card deck printed and got three decks because of printing flaws.)
I haven't run a lot of Call of Cthulhu; I've mostly played it. (And I'm playing a lot more Delta Green, mostly because I'm in a campaign for that.) The only one I've run has been something called Dissociation, and that was a while ago. It was with people completely new to CoC, and two of them still relatively new to TTRPGs in general. It went really well and they got into it! One character tried to commit suicide. Really good roleplaying.
I should pick up Regency Cthulhu at some point. That's just right up my alley.