FWIW, TW's liquid comes in a few different quality levels. That being said, they are all pretty good though. I'm sure a lot of the "plasticy" taste is due to you being newer to vaping, but there might be something to do with the plastic tanks. There are a few threads floating around about them. My biggest suggestion would be to look through the general discussion section and read through whatever you can find about them. You'll find a lot of tips that way. Since they're new, not everybody is well versed on the intricacies of the tanks, I know I'm not. Good luck! :^)