ordered 3 extra attys (plus the 2 that comes with it), 5 extra carts (plus the 6 that comes with it) the only juice i ordered was the 26 tobacco flavor, but i did do a reorder last night for some 10 menthol. The tobacco so far seems pretty good. I dont really see myself getting into different fruity flavors.
So far the batteries seem to last a pretty good while so i wont order anymore batteries. If i understand, the ego and tornado both use the 510 attys and carts so if i need more battery time, then i will just order one of those units.
The only problem i seem to be having is every inhale makes me cough. I can smoke reg cigs with or without a filter, i have smoked cigars with a full lung inhale and the same with pipes, but vaping I just cant seem to handle. I havent figured that out yet, but it seems to slowly be getting better.
You will like the 510. Just make sure you have some spare parts. Have you bought any juices? Which flavors and what do you think of them?