Just got my OMG and 808 tanks. The OMG with cool carts is awesome. Great vapor and the taste is better on the OMG. Didn't think 5v would make diiferene but it does. Haven't tried tanks yet. Also got some diamond stealths for the tanks. Been using other kr808 batts, but will try v4l batts and see if they're better; needed them any for the tanks anyway. Picked up all the usa juices also (7ml). Wife gave me hard time about all the money I spent...LOL. Can't wait to try the tanks on both the OMG and stealths.