This thread may be for you:
Pod Mods: Which One Are You Liking the Most?
Juuls are extortionately expensive, the pods can be refilled they are approximately 50 mg/ml of nic salts and yes, probably have a high PG content. You can refill Juul pods a certain amount but after a while the coil will die (as I understand it, I don't use pods and maybe it's not the coil but something else, but yes there is a limit on the number of refills you'll get.) You can check out the ECF approved vendors to find nic salt juice if you so desire. I think there is also a non proprietary pod for the Juul though and I think they're cheaper and last longer (sadly I don't remember what thread I read it on and etc..)
It is accurate to state that if you haven't smoked for a long time, you'll probably get a buzz. Heck, though *I* got a buzz from trying ONE hit of my son's Juul (I have done everything possible to get him off it including gifting him my first mech (protected) setup that he liked.
Thing is the Juuls are somewhat proprietary and IDK if the "buzz" was due to the super high nic content, or something else or that combined with something else. I WILL say, I took that hit, and thought "I am never trying THAT again."
The buzz doesn't last. Homeostasis means that your brain will adapt. Also, it will probably adapt more QUICKLY as a former smoker, to be honest. I quit smoking entirely while pregnant and nursing and when I returned to smoking that "buzz" feeling did not last.
Similarly I have a few high nic tanks now, to aid me in my quest to return to vaping only. The first couple hits were somewhat buzzy. After a day or so (although they're still useful in a pinch when craving a cigarette, as I DO still get more nic) I didn't find them buzzy at all.
The body and brain are self limiting systems, it's the reason for "tolerance" with many drugs. Your brain actively does NOT want you having too good a time and will start downregulating OTHER naturally occurring stuff, etc.
You can certainly continue with the Juul (or any other cheaper pod mod if you like them) but the magic of the Juul is unlikely to last.
Best of luck and etc.
Anna