I have one of those Cloud Buddy's from OGB. It's great.I need more time with this but I think @Zillacon is right on with both how nice it is and that it takes some fiddling. It addresses a longstanding need for folks who like to use dry glass to cool their vapor without flavor loss: it's usually dry, sometimes uncomfortably so. The Humi's a great option, but getting it into the vapor path without too much rigamarole is my current challenge. I've ordered one of these adapters which should simplify things a bit:
Might have to order a Humi....