I've dropped a bunch of money into different tanks and I think I finally found a primo tank that works the best for me. The KangerTech EVOD is a sweet unit that gives lots of vape and really make the
juice taste great. I first started with the CE-4 Redux and love the amount of vape and flavor I got with it, but I haven't been able to find replacement redux coils since my first purchase. The other tank that is awesome but very small is the vision Nano tank. This one requires a delicate touch to use. I think i broke mine when I was putting
juice in the tank the first time and have had to handle it with kid gloves ever since, but I have to say it gives me the best taste of all my tanks. Bottom feed tanks seam to have the best flavor over top feed, but since my Redux tanks are equal to the EVOD there's no way for me to say bottom over top is the way to go.