I went
through 5 disposables before I found the ECF. If it makes you feel any better, I tried the Krave, and it was not even close to the worst one. Three of the five stopped working far short of their promised 500 puffs, but they tasted so little like what I was hoping for that it didn't really matter that much
I was intrigued enough to keep going. I found the ECF, and I'm glad I did. There is a remarkable amount of knowledge here, and plenty of people willing to share it. Good luck