Well for two days I fought it hard.
Now I'm really satisfied.
IF y'all decide you can not get them to work I will gladly give you your money back plus shipping.
I will say try to get them to work. You will not be sorry.
+1 to lowboy's comments. I had trouble for a couple of days. some very anemic vapes for sure. It got better fast... Then i decided to experiment with different setups and it went back to frustration for a while. After a couple of weeks, I put down carto's forever. The vape is AMAZING!! Once you learn the caveats of the ZAP, it is absolutely worth the frustration. My only complaints are size and lack of pocketability. My ZAP/Provari Combo usually stays at home unless I am leaving town, but it is the best performing combination I have ever vaped. The Genesis experience in general has been short periods of frustration, mostly caused by my need to experiment, followed by some awesome, flavorful clouds of vapor. Once you find your sweet spot, man is it ever sweet!!
Keep on truckin' you will get there, and rest assured that if you don't, there will be a line of people willing to refund your money plus shipping to take it off your hands. There are loads of people on this forum willing to help, so reach out with specifics.