I don't have the temp control coils yet but I noticed with the standard 0.5 & 1.2 coils I have got dry hits that were just terrible, I have got hot juice splatter etc.. I don't get it, even with the RBA coil, not to mention the cotton it came with was just making the juice taste ok, but not extra great. To me Kanger has had issues in the past and they still do, Kanger is a expensive name, but there quality don't seem to hold up to the price. Personally Joyetech has got them beat, so does innokin with there new sub series tanks. Idk what everyone else thinks but I know if I am paying 40.00 for a tank I expect everything to be top notch, and the coils for the tank should be top notch as well. Just my opinion