They draw well, though once in a while you might have to give a 1 or 2 quick puff prime. I'm
vaping one now, with a 0mg cartridge, before I sleep.
I have a mixture of auto and manual batteries. One day I think auto is best, the next day manuals can't be beat. Right now, I'm using autos. With my autos, I will say that when they decide they need a charge, they let me know quite abruptly by ceasing to give me any draw and flashing that tip at me, lol. I always carry two batteries with me at a minimum, just in case. And, I like the mega charger they have now, to carry two batteries and a couple of carts. The 78mm batteries will fit without a cart attached.
As for the new Volt X2, I'm going to try the automatic first, when I put in my next order. See how it goes, and whether I really want to step up in that direction, heheh.