I've had my black Cana from wetvapes.com for a few days now. Used with with a Trident dripper and a couple of kayfuns. Seems worth the cost thus far to me. My only confusion is that with a .3 coil on the dripper that reads .3 on the Cana, it still flashes the ohms when firing indicating it is dumping unregulated battery voltage which contradicts the .3 - 3.3 ohm regulated range on the elev8vape.com specs for them, but does not contradict the .4 - 3.0 ohm regulated range provided on wetvapes and 101vapes. I will be testing something reading .4 oh the cana tonight to see whether the smaller range spec holds true.