I got 2 of them yesterday, and so far, really like them. The draw
is more airy than the EVOD, but I don't mind 'cause there's plenty of vapor- more than the EVOD. The flavor, unadulterated by plastic, is delicious! I'm using them with the installed 2.4ohm coils on an 3.7 volt 650mAh EVOD battery. I was able to easily screw one of the shorter EVOD coils into the Smoketech base, but have not tried firing one yet. When I do, I'll post back and let you know if it works.
I really like the form factor of this clearo. On my 650mAh batteries it's not too top heavy. I can confirm that they hold over 3ml of liquid. I filled a 3ml syringe with water- past the 3ml mark (probably 3.5), filled the tank, and there was still room for a little more!
If you're into color matching your clearos with your batteries, be aware that the blue ARO will not match the dark cobalt blue of an EVOD battery. It's more of a teal. I like the stainless ones, 'cause they look good on any color battery.
They
are pretty:

