I found the Pod through Mysterious Circumstances, so I think the short form review would be, if you like MC, you'll like Dark Windows.
I happen to love MC and I love DW. So much of what anyone reccommends is personal preference, sense of humour is an especially dodgy thing; there are people who feel/ think one conversational podcast is hilarious, and other people who fly into a rage just thinking about it. I think Kevin, Kevin and Seth are naturally funny people, and that can be brought to any topic. (They, like Justin on MC, swear. I've never understood being offended by swearing in the midst of listening to descriptions of mayhem.) The paranormal, cryptids, crime, history and some genuinely off kilter situations make up the topics covered; I always download a few at random to give a new podcast a chance, so I'll suggest 'Our Encounters' '3 Bad Dudes' and the series on 'The North Hollywood Bank Robbery' to show you what they can do. I'm very glad I found them, I think you could be too.