Funny story... I have a provari and can say it has held up for two years. I work outdoors as a lineman and it stays in my pocket. To me an Ecig is a tool to avoid analogs, don't matter what shape color or name brand the function is the same. I've used at least 30 different types of Ecig and find that my beat up tube with the jacked up button and loose 510 (she took a good size fall from about 20 feet from a bucket truck onto grass (provari)) is always there to punch when I need it. I can't speak for a lot of other vv/vw mods (darwin/dna20/dna30/...) but the only one of the 5 used (twist/knock off twist/volcano?/evic/provari) that pushed out what it was set to is the provari. Don't matter if it's under load or without an atty, what you set it too is what you get. Why change what works and why argue (even in a joking matter) about name brands. I love the fact that the community here is strong and full of help and opinions, but just like the post before me, there two sides to every coin, and in the words of Joe Walsh "there's two sides to every story" ( <harmonica fans will enjoy this tune) regardless there is a set up for every user and every budget. If you can afford to smoke you can afford to Vape. I will buy anything that doesn't say it (china) on the box, but made in the USA don't matter at this point. Quality counts and longevity speaks for itself. Of you need 3 egos to get you through a day then buy a 18650 mod, if you want to have some controll on the voltage there's a number of great choices out there. If you want something that's got a lifetime warranty buy a mech from Super t and if you like company's that have quality controll buy from them. There's tons of info and tons of choices, just remember that without competition there's no growth, but we are all here for the same reasons.
Yall is funny