So here's an update after a couple weeks.
Next to my epipemod (I was a pipe smoker) this 5 volt auto mod has very quickly become my favorite vaping device. It is such a satisfying vape.
HOWEVER, it stopped working this past weekend. I used a 3.5 ml DCtank on it exclusively so I wouldn't have to worry about leaking. I also took the tank off every time I filled it. Not sure if juice got in the switch anyway, or if it just malfunctioned.
I've tried multiple cartos on it now, and even just taking a drag with my mouth directly on the connection... nothing. I blew into it once and the light came on. Took a drag and the light fired for just a sec and went out. Tried it with a carto and got a small amount of vapor before it quit.
I've contacted madvapes since it's still under warranty. They're gonna take a look at it.
So in conclusion, I LOVED the device, but have had an issue with this particular model. I'd still highly recommend it though if you'd like to try 5 volts and like auto switches.