I know this has already more or less been covered, but the juul pods aren't all that hard to refill. You can refill them probably 3-4 times before you really have to worry about the coil burning out or it tasting like crap. At the very least you could save a pretty decent amount of money by only buying pods when your old ones are no longer usable for refilling. As far as other pod systems are concerned I only have experience with the My.Blu, which I personally liked and a few days with the Suorin Drop which I so far love. Can't really speak for the longevity of the drop but it seems to preform pretty damn good with nic salts and the battery life is better than the juul. It's by no means the same size or form factor but it is very small and sleek, but also extremely sturdy feeling.