Hello I recently got a cleito 120 and have been enjoying it very much. Although I find my coils only last my a few days before getting a really burnt taste. The juice i use is 70/30 VG/PG. I think it is a wicking issue as if i unscrew the top cap so there is a gap for air to enter the tank the burnt taste goes away completely. I also find that if i vape it with the top cap on for a bit then unscrew the top cap, there is a sudden burst of bubbles from the cotton into the tank. Not sure if i am doing something wrong or what but i am getting pretty frustrated as i love this tank but only for a few days at a time.
EDIT: Just checked the security code on my replacement coils and they are genuine.