I really wanted to like this unit but it's falling far short of my expectations
. One of my batteries is DOA, no doubt about it. This isn't really a problem, more an annoyance since I can send it back for a new one. It's the loose, leaky carts that I am finding most troublesome and a total dealbreaker. I've had it come off in my mouth a handful of times. Why so loose?? The vapor is pretty good, but nothing more than I get out of my penstyle. I also don't think I'm into the manual switch, just personal preference. I don't want to press a button every time I take a drag. So as it stands, I'm considering sending the entire kit back and maybe getting a Pilot...or hell, maybe even a Screwdriver.