We've had nearly constant problems with the tanks. We've had to prime over and over again to get one good solid vape. The second vape has no vapor at all and tastes awful. CS was always helpful but repeatedly told us it was the "break-in" period even after a second shipment of tanks arrived. Our magma atty was nearly clogged even after numerous cleanings, and leftover cartos were horrible tasting while we waited for replacement tanks, which also failed - UGH. We finally ordered two replacement attys, which I must say, atty w/ drip tip seems to be a foolproof solution. HOWEVER, lol, we did stick a drip tip on a carto in the meantime while we waited for a replacement atty to show up. That seemed to remove some of the foul taste from the old carto. Inferno batt is a good one, though. AWESOME VAPOR CLOUDS when you have decent working equipment!