Works with both freebase and salt nicotine. The coils can keep up with chain vaping and last decently long. Not sure if I got a defective pod but it seeps. I have to wipe down every other day. The fill port is a pain. The captive rubber cap gets in the way and if you don't tilt it a certain way, the liquid doesn't flow into the pod and just overflows. Other than that, it makes clouds, hits hard if you want and battery lasts.