i've used it on my reo and geyscano, currently using 2mm dual 26ga at .5 ohms. the squonk action is pretty typical, feed hole is large so maybe a little easier than some other bf rda's i've used. the feed hole is a little above the deck, so it doesn't drain completely, (a non issue really since the airflow holes are so high up and the way its designed its pretty leakproof plus the spitback protection works.) but up to the level of the hole drains fine. it makes oversquonking a thing of the past.
i prefer the cyclone inner chamber, since the other one is way too airy for me (i prefer wide open air holes to keep the rda cooler). the other inner chamber is definitely more towards cloud chasing, probably minimum ohms would be .3 or lower.
i definitely like the flavor, though im getting over the flu so my sense of taste isnt great at the moment, but previous experience with the v1 non bf of this and the little taste i do have tells me that coil location will again be an important component to this.