0 stars! I HATE these new black opaque refill cartridges! I need to see how much liquid is inside. I need to monitor how much I'm smoking by keeping an eye on how much is left. They are probably ripping us off & not even putting nearly as much liquid inside now! Especially people with O.C.D. & A.D.H.D. etc, we need to know/see how much is left inside 😢 Plus they leak! Thieves, scammers, rip off. Avoid. Avoid. Avoid. Most people I know have already switched to a new brand of vape & now I'm going to do the same - Switch companies. Unless i can quickly find the old clear refill cartridges. I used to recommend Vuse to people, now I warn them to AVOID vuse! Terrible new packaging etc 😒