Vaping nicotine salt e-juice isn’t like vaping ordinary e-juice. If you picked up a bottle of high-strength nicotine salt e-juice and vaped it from a box mod and sub ohm tank setup, you’d likely get a substantially and fairly unpleasant hit of nicotine. But nic salt e-juice does also come in low “dripping” dosages, although the jury is still out as to whether it’s any more effective than regular nic at lower levels.
Nicotine salts e-liquid is intended for use in lower-power devices. The JUUL is a great example of a device that would ideally be used for nicotine salts. It’s compact and low in power output, essentially like a well-made cigalike. Pod-style devices are optimal for nicotine salts, but you can use more conventional, easily refillable devices too. A basic vape pen will offer more than enough power to get a satisfying vape from a higher-nicotine salt blend.
The big advantage here is for newer vapers, who will both benefit from the more efficient nicotine absorption and the fact that you don’t need overly complicated gear to get the most from it. If you have a higher-power device, you can also get nicotine salt e-liquid in lower nicotine levels too. Whether these are actually noticeably better than ordinary freebase nicotine e-juice at the same nicotine level is unclear, because one of the big benefits of using nicotine salts is that higher nicotine levels can be comfortably vaped.