I started with the Atlantis with those gigantic coils. wonderful at 20 watts, 0.5ohm. Plenty of Taste,Plumes, and longevity. Kanger OCC. Well its a beautiful tank, but that's where the beauty ends. You would be fooled on a short review. You need to use it for a complete day. The rta has dangerous threads that will cut you and again seems good at first, but the trouble on the RTA and OCC is the coil is to small and not enough cotton. After two days the OCCs need replaced VS about a week on the the Atlantis. Just my opinion. YMMV
PaulC35
PaulC35