3 months now without a fag, began with nvee pro 2 which was what I believed was a good vape, this tank is so much better it doesn't leak unless you chain vape It, I use 50/50 high nicotine juice, this comes with two coils to try but I would suggest you use them and then order the 0.8 z coils they are perfect, it comes with extras like replacement glass, seals and drip tip, the flavour I get off this tank is maximum and made me realise that the nvee pro wasn't anywhere near the same league, it is very well constructed and looks very expensive but it's a total bargain at £15, guy from work gave me the mod so only cost me £15 and now I have a spare nvee pro if there's any problems so highly recommend this if you have a battery, it's gun metal though and not blue as stated