I first called the shop where i bought the vaporizer today. On the phone i got a guy that has been using vaporizers for years and he said it's not normal for the crafty to have a plastic taste. I was the first one he ever spoke to who called for having that problem (he didn't now if there where a lot of others). They also asked me to call storz & bickel, so i did. they told me to send the unit back because it's not normal and could be really bad for your health (slow-melting/burning plastic, chemicals, etc it's kinda logical.. burning/melting plastic is REALY BAD). The shop where i bought it is gonna check it when they get it and if it's a bad unit i'm getting a new one (i still have 30 days money back guarantee).
I'd rather be safe sending it back and getting the news that nothings wrong with it and that its just me focussing on that taste (or maybe smell of the hot air?), instead of smoking it for years and burning my lungs to pieces with burned plastic..
Also today i noticed that one of the blue rings (the one in the cooling unit) has cuts in it and is kinda melted (not heavy but it felt a bit dried out) it broke immediately when i did it off the holder. Maybe thats what gave me a bad taste. Only have it a week and that ring already broken so thats really weird in my eyes.
Hope this helps you out and doesn't make you paranoid, the guy i spoke to said it's really rare for having an weird taste.
Stay healthy, it's the purpose of switching to vaporizers.
I will be interested to know what happens. In particular when you get your crafty back or another one, to see if you still taste the plastic.