If you guys haven't tried them yet - do. I just tried them for the first time, and they work really well. I love the atty that comes with them, too. And they are easy to use. My only problem is pushing the little button for a short enough time. I keep emptying half a cart into the atty at one time.
However, all that does is make the atty gurgle. It still vapes fine and doesn't even leak from the battery end. Great. Idiot-proof. Just what I need. 
