Such a good tank. I liked the crown 3 mini but this BLOWS it away. The airflow can be damn near breathing to tighter flavor. The gimicky pins dont do anything harmfull but dont really do anything special IMO but maybe someone else can taste the difference. Theres only 1 type of coil so far the quad .15 it says 95-120. Ive never got that high up without it burning out in a few days. I do 77-85watts. Taste good. My favorite tank hands down. All day vape.