I like very much my Hopper , so I decided that if I'll become bilionaire I will buy 20/30 titanium plus 100 batteries and, why not, some spare parts and accessories . Just to be sure to get a working one. As for now , soon nine months waiting for a stupid RMA of a little metal piece broken, like many others here , I landed to other vapes . Because the real question is not "how does my vape perform now , just opened the pack " but "how will it perform in 1 , 2, 5, ten years "? It's not only a money question : does it work for sure , for example if you travel abroad , or if you got to take it for medicine ? The one I got now is sure that works 100% and also it will in ten years , don't bet on the GH . Really hope for a change of direction , with the new labs some of you are talking about. As said long time before I prefer to pay for an accurate setup sons a infinite lifetime warranty. But they said that no , I have to wait , free but in several months. Let see what happens , nothing to lose I will be happy to change my opinion .