I had to pick up on of these today to get me through until I can get some new coils for my starre tank. I must say the coil design is probably the best I have seen as there is no metal blocking the 6 wicking holes, yes 6! However the AFC ring is plastic and designed rather cheaply and moves way too easily. The worst part of this tank is the drip tip and the drip tip hole in the tank. Both are much larger than normal drip tips causing the issue of not being able to use normal tips in the tank. I'm not a huge fan of super larger bore tips and this thing is a monster. I was able to make a normal tip work with a larger o ring some dental floss and plumbing tape. It's very frustrating that they would go with tip so large that is useless to me now. Why is it they would go this route ? I will be moving on from this tank when my new coils arrive and it will likely be for sale on here as soon as they arrive. I've been debating an ipvd2 or the siegeli 75 for a new TC device this has made up mind on the device for sure.