I would have given this a 5-star rating because the customer service was pretty good and the shipping wasn't bad. Also, I absolutely love Tobeco Super Tanks. The problem is the tank isn't performing as it should. I have another Super Tank and I've never had any problems with it. In fact it is the best tank I've ever had. I hate to say it because I believe that eciggity is a good site, but this tank appears to be fake. It has a cone shape around the base of the drip tip and the other Tobeco 25mm tanks don't. The one I have is flat and flush with the top of the tank. It does have a very slight curve upwards into the shaft of the drip tip, but nowhere near as noticeable as the one I ordered. The cone is very obvious. Also, my wife and I both installed coils into this tank and I am 100% positive that we installed them correctly. When we screwed the drip tip on it made a cracking sound each time. I believe that it's not making a seal because of this cone shaped drip tip. With the cracking sound, the very pronounced cone shape and the fact that my wife and I installed coils several times, I can only conclude that this tank is not authentic. Unless Tobeco has changed their design, this is not an authentic tank. At the very least, the drip tip is fake, but that doesn't make any sense. I I heard that they were discontinuing the tank so I wanted two of them at least. I also ordered a box of 50 Tobeco coils, I really hope the coils are authentic. I've used a couple of them and they've worked well, hopefully the rest will be good as well. It's probably been too long for a return. I'm not trying to throw shade on eciggity, but my experience was bad.(except for the coils hopefully) I spent a hundred and twenty something dollars and didn't get what I paid for. Again, I'm not trying to dog eciggity. It's possible that they received a bad batch from there distributor. I'm just very disappointed, otherwise this would have been a five star for communication and shipping.