Being a bit of a novice at e cigs I tried the Vype e tank, and I must say its very good. I found the instructions a bit vague though they seem to spend more time on the bottle than filling up the tank. Therefor I over filled it I think. I am still trying it out and have nothing to compare it to but so far I am impressed it has helped me to cut down on the baccy drastically and it's better for you