When I first started, I coughed and wheezed with every draw and gave up on it. I then learned that some are extra sensitive and/or totally allergic to pg. So I got some 100% vg juice and it was somewhat better, but not pleasant at all. Then with more research I found out that the nicotine level was most of the throat hit. I dropped down to 18mg, then to 12mg. The 12 seems to be my sweet spot for now. I also can vape 50/50 pg/vg juice where the flavor tends to come out more. So for me, it was the high nic level causing all the discomfort. For others, they can't use pg. It may be just a trial and error type of thing.