well got my first Vivi nova tank on Tuesday the first. my cartomizer was completely fried and i had to go to town and i found there was one vape shop they only sell vape stuff no tobacco stuff at all. so they guy didn't carry cartomizers so i bought a Vivi nova tank for 10 bucks. it works ok but sometimes get a burnt taste and i am using the watt setting on my vv/vw mod. but i do plan on rebuilding these heads because they are so easy to do. have to keep it filled up or it will get burnt taste anyone else have any experience with the Vivi nova tanks.