HCigar are a Chinese manufacture of many clone mods and attys, up there with the best of the clones about and been on the scene i think a good few years now. I think this is them trying to get away from the clone market and make something authentic.
As well known as vapourshark maybe but for different reasons, as for difference I really wouldn't know as this is my first step into the world of vv/vw temp control as I've only used clone mechs up until I see this. (As I said, I'm a tight arsed bastard)
From what I've read about it it sounds like they have tried to make a quality product and comes with a years manufactures warranty.
It's in the post at the mo but hopefully be here sometime next week.
Will put up on here what I think of it but I don't have any experance with this type of mod to compare it with so will probably be a load of nonsensical dribble like most of my posts.
As for helping you make your mind up what I will say is get the one you have your heart set on.