I just picked up one recently, can't cant say I been highly thrilled with it. I love the looks and general design of it, and because of its 22mm dimensions, it looks sick as .... on mech mods. However, rebuilding the coils are a bit more hassle then kanger heads, and even after doing so it gives me just a marginally better vape then the stock heads, not really worth the hassle bit money wise I can dig it. Mine gurgles and floods if the amount of cotton isn't just right and notice that it tends to be random when it does. All in all, a good tank for a fill and go device, but I feel for what it is and the cost of the tank alone and its heads, there are better vapes out there for the money and a little less hassle. Never been a fan bottom coil tanks anyway though.