Just ordered mine this morning from Creme De Vape and Intaste (missed out this past Monday). Really looking forward to this tank atty. I've been using the KF4 near exclusively for over a year now, and it's hands down been the best tank for me. That makes the bar for the K5 really high, but from everything I've read, I'm confident that I won't be disappointed.
You won't be disappointed, that's for sure. I've changed countless amounts of direct to lung tanks, but there was always The Tank for mouth to lung - Kayfun V4. Now it's time for V5 as it's even better! Worth every single cent of its price!