Woah, I feel lucky when my coils last over a week lol! Most of my cubis coils burns up around 5-7 days. But then again this could be because i'm using the eGo AIO where I can't change the amount of power being regulated. What kind of juice is your brother using and whats the watts he's vaping on? I intend to buy the cubis and a boxmod once i'm ready![]()
I was curious about this so I looked up reviews... I'd recommend that you do the same.
Personally, from the way it's built, how to refill, etc, I wouldn't consider it.
For coil life, if you don't use heavy juice with lots of sweeteners, low nicotine, and get the settings just right to maximize coil durability, a good coil can last a good 2 week to a month. I've done it a couple of times, so has my wife and daughter, but then, the next coil might last barely a week.