Of course, we and no scientists could verify if it's safer or more dangerous than normal cigarettes because their methods for testing it are illogical.
I switched to vaping from smoking recently.
I well and truly don't care about dying from cancer or a heart attack, but I really, really don't want anything like emphysema.
My gut feeling is that vaping will create new respiratory problems that are yet to be discovered so I'm going to throw that in too. Whatever vaping is, it's still not what the human body was designed for.