Mine came today too. I had to go work for a while and the batteries wouldn't charge fast enough, so I had to leave it. I hurried home and batteries were charged.
Wow. I love the way this thing hits (and I'm only doing 3.7 v). Got the sizzle too, but I'm sure it will fade some either with more gunked up atty or battery wearing down some on its charge. Anyway, the sizzle amuses me.
I do have one question. Where the two small holes are on the bottom end, I had small round pieces of what looked like tin foil cut in tiny round circles covering them. Anyway, I dislodged one of them straightening up the battery spring and popped out the other one trying to put the first one back on the first hole. LOL. I finally just dropped them into the end of the VapeStack and the holes are uncovered.
Finally, here is the question: Do those two round pieces of foil serve any purpose? It seems to look and work fine with the holes uncovered (at least by small circles of foil). Do the rest of you guys have them? I'm just curious. I'm delighted with my Mini VapeStack (blue - which looks like a cross between a blue and a slightly teal color - really beautiful).
Oh, and thanks for the extras too!