I was a 50 year smoker,went to cig a likes 3 years ago,5 months ago finally isticks and aspire mini's..This morning I got my kanger sub ohm mini..I've gone thru about 4 ml already,have a headache and a nic buzz using just .5 nic level..It is what they say it is...At first I thought this is too much for my old abused lungs but am learning to take easy "combo" lung and mouth hits..I replaced the drip tip with a kanger mega tip I had and using one air hole...Now using 17 watts with the .5 coil and 21 watts with the 1.2 coil..At first I could not get the flavor I did with the aspire mini's with the mouth to lungs but now the sub is better,just a bit...I see very little change with the 1.2 ohm coil...Of course the vapor cloud is like an opium den in here...I've never used a true sub or dripper but this is unreal..The more I use it the better it gets...I can't do the huge lung hits you see on U tube but I love this thing...vaping Vermillion River .5 Kentucky Maple right now,tastes very good,also used some V.R. Blend #7 and Kentucky Premium blend,all were great...I'm a happy ole camper,Bob