Carto tanks (J-tank, Liquinator, etc.) are a great way to vape w/o the hassle of adding juice all the time.. Once you get them figured out, and know how to fine tune one, they become a great addition. Don't get me wrong... it took me a bit to find what worked the best w/o flooding the carto or not getting any juice in them at all. Good luck in whatever you try... and just enjoy all the different choices we have!