I saw just about every review saying they fixed the problem. What a massive media blitz they did. So I bought it and when I fired it up the vapor and flavor were awesome. I was thinking YES they finally fixed the problems and this thing is awesome for once the reviews spoke the truth. Then I kept vaping enjoying my new vape then the gurgling started and the spit back. WTF I wasn't even through my 1st tank fill. I thought I could vape through it. Nope. Then decided to try the other coil. Same thing. Starts out great then fails. I'm going to buy replacement coils in the event I got a defective unit. But initially this is not as great as everyone claims.