Japan is just now getting E-Cigs? Usually, it’s us in the states who are technologically behind the times.
E-Cigs are good when you find the one that works for you, but till you get there, it’s very expensive to experiment with various models.
I’d also hesitate to use them very much because I hear many reports of these devices exploding or igniting and setting the user’s clothing on fire. Quality Control is needed. Same story with Hoverboards. I would not buy one for my nephew right now. Too many Xmastime home fires started by those ‘floating’ skateboards.
Isn’t this different from Vaping, as the device heats actual tobacco without a flame to create an inhalant?