i got one a week ago, in my opinion i like it alot. ive been using protank1,2 aswell as the mini. this protank aerotank has dual coil,im still useing the stock coil. i am not an expert but i find vapeing mtbakers banana my alldayvape, its so flavorable. so far no leaks, gurgles when u have it adjusted for tight draw, but opening the airflow fixes it quick. the dual coils costs 2 dollars more for the 5 pack compaired to the protank single coil i get from discountvapers. but i think its worth the 2 bucks. everyone needs to try it for themselves, its definitly worth the upgrade. at the moment i am awaiting my new aspire nautillus to try but i so far think its over priced. but we'll see. i hope u like the aerotank aswell. take care and stay away from garbage cigs.