If you try vaping and plan to stick with it DO Not do what I did. I spent alot of money gradually moving up in price on tanks and ended up buying about 5 that were all good quality and good vapes but I always wanted more flavor, alot of it has to do with me not being able to taste the juice by midday so I was always looking for a better hit and each payday I would buy a new tank, IMO it would be best to skip the in between steps and go straight to a rebuildable. I got my kayfun yesterday and don't think I will ever need another tank, I stayed away from rebuildables at first because I thought they were all drippers but this thing holds 4.1 ML in the tank, double the flavor of anything I have tried so now all that money I spent on tanks was basically wasted. I will keep my aspire nautilus as it is the best tank I have found that has replacable atomizers. I watched alot of video's on rebuilding kanger single coils and if you can get that tiny coil built and installed that will help your flavor alot and if you master that the rebuildables have way more space to work with. Just my 2 cents.