I received my Varitube SS yesterday after getting a full charge in them I was amazed with this device. I wanted to stop by and say "THANK YOU" great deal and fast shipping. My buddy is wanting to order one now I pointed him in your direction, all it took one a couple hits he was like a kid in a toy store. I had a Boge 3.0 Ohm cart on it and set it around 4.5 it produced so much vapor and the flavors are unbelievable I think he will be ordering tonight.