I started out with Kissbox, Stick is my 2nd now (since today).
I got the Stick, checked the atty works, replaced it with my Kissbox atty (the same thing, but had my liquid in it) and.... gave the rest of my Kissbox parts away. That's how sure I am of the Stick.
I'd recommend Kissbox over Stick if you really prefer a pen style rather than this strange kind-of-like-a-cellphone look.
Also, Kissbox gives you both manual and auto switch. Bare in mind, though, the manual on Stick works much better than on Kissbox. I wouldn't want an auto Stick, even though I prefered auto switch in Kissbox.
Other than that, I see no reason to choose the Kissbox. Some points in favour of the Stick:
- longer battery life (360mAh vs. 230mAh)
- cheap batteries
- shorter, fits nicely in your hand
- built-in usb passthrough (vape&charge)
- better manual switch
- manual has a LED (Kissbox manual switch doesn't)
- manual has a cut-off (11 seconds, but lets you take another drag without delay)
- sealed atomizer compartment (no liquid leaks to the switch or battery)
About the LED - I found myself countless times thinking "is it broken" only to realize I have to change the battery.