I love the dura-c. Great, great, great e-cig. With a couple drops of glycerine added to the cart or dripped onto the atomizer, there's tons of vapor. And the vapor is consistent with every single draw. It's pretty juice-hungry and you gotta make sure to keep the cart topped up or the throat hit and vapor production really suffers.
Throat hit is huge, sometimes almost a little too huge.
My batteries take almost 2 hours to the minute to charge completely, and if I'm vaping heavily, will last about three hours.
The older style duras had some battery and leaking-cart issues. I have zero issues with leaking carts.
I'd also add that the original atomizer is almost a month old and shows no signs of slowing down. I don't clean it or leave it upside down at night to drain or anything, and I drip directly onto it. Vapor production slowed down a little bit about a week ago - I blew it out from the battery end and it was good as new.
All in all, I couldn't ask for more. I'm VERY happy with my dura.