I bought a vape pen from them, it showed up and didn’t work out of the box. I contacted them, I had to provide video proof of it not working and instead of refunding/replacing, they wanted me to contact the manufacturer to redeem the manufacturers “lifetime warranty”. The manufacturer will replace it, but it’s $14 shipping. I’m out $14 extra dollars because of it. I had to file a dispute with my CC company. Buyer beware.

I'd rather screw-in than use a magnetic adapter. This thing works great and it has a newer USB C port and also an Apple charge port.

The only weird thing about the cart mod is that it has a safety sleep function. You can't just hit the button and take a drag, the first button hit only wakes the screen up. So, if the screen is off (like it's been longer than five seconds since you hit a button) you have to first hit a button and wake the device and its display screen, then hit the fire button and it'll run. (It keeps it from turning itself on in your pocket and burning up a cart.. but it's a bit annoying if you're just trying to have a slow session.)