Has anyone tried these yet? I just ordered some to try but they are not here yet. They look promising and hold 3.7ml of juice. I really like the window so you can tell how much juice is in them. They are also coming out with a 5ml one in a couple of months. Here is where I ordered mine. Giantomizer CE 2| CE 2 3.7 & 5ml Giantomizer |3.7 & 5ml Giantomizer CE2 | 5ml Giant Cartomizer