Should be a nice clone given it's not the one from Tobecco. That's the only Black Hawk clone I'd steer clear of. It uses a dual-pin for the top cap; one for atomizer connection and one for the battery. It sounds good in theory, though flat-top batteries require you to thread the second pin out so far, it's to the point of falling out. It could be that the tube is too long, though I don't have an authentic to compare to.
It became so annoying that I bought a few brass screws, cut them and sanded them flat - then ditched both of the pins and then, since the top cap insert was delrin, rethreaded it. I can't use the pins that came with it now, though the brass screws stay in place and fit snug. No more worries
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