These things are awesome, just turn the pen the number of clicks you want for the dose, take off the needle cap, insert the pen in your abdomen, plunge down the top of the pen (like clicking down a regular ink pen with your thumb), take it out, put the cap back on the needle, thats it.
No fucking around with BAC water or insulin needles, no waiting for the reconstitution to dissolve before injecting
I should make a little demo vid next time i pin