First of all, I LOVE the dongle. It's so small, at first I thought I only got two tanks! It's not so small that it's awkward to hold, though, and I have pretty large hands for a woman. The flavor of the tank right out of the box is very good, but I admit the draw is a little loose for my preference, and it does make a whistle sound when you draw on it (not loud, though) and, like the sapphire bud bottom atomizer, the vape is a little cooler than I like. That being said, I really do like these. I had already purchased the 10ml bottle with the tiny nozzle, so I had no problem filling them. Be forwarned, the whistetip mouthpiece on these tanks is larger than the one on the vision extremes. I do wish the mouthpiece was smaller. However, I just considered the tanks a bonus. I was after the dongle, and at less than $30, I think it was a steal!
