Ok, so Ive been vaping for about 2 months now. Have been using an ego twist setup that i started with. I love it, its very simple to use but inconvenient when my little battery light starts flashing telling me i have to put it on the charger. So I need a backup. Problem is that Im overwhelmed by all of the different devices available. I want something a little more advanced than my twist, but nothing too complicated, under $100. Any advice or suggestions would be greatly appreciated