I received my Cana today. So far its great. I had heard that the dna 30 board in these was not Evolv. Which this one is definitely not. I had also heard that the button would not fire until the screen came on....meaning click once for screen then click again to vape. This one i can just pick up and click the button and it vapes. Its great. Anybody have a Cana and have problems? This one is from Cloupor and it has a 6 month warranty.