I use both the Kanger T2 and the Mini Vivi Nova on my Twist. Overall, I prefer the Vivi Nova a little more because the
coils last longer and it is a little more consistent. That said, we have to keep it in it's proper perspective. The T2 costs about 60% of what a Mini Nova costs (including the replacement heads). As for the performance, I don't notice any difference in the flavor, vape production, or TH between the two. Like I say, the Nova's are just more consistent and their heads last longer. But you pay more for it. I'm willing to. Others? You make the call.