Just a half a day on it but so far so good. I've tried opening up the eliquid control - lots of flavor. (You have to remove the tank to access the eliquid control but it's something that you'll likely set by flavor and forget). I prefer more subtle, so I turned it down to 1/3 of the opening. I have the air choked off quite a bit. For those that lung inhale, opening up the air control - esp. with the big 'caliber' mouthpiece, you're getting a lot of vapor quickly. I'm vaping it at around 11 Watts (0.5 ohm coil) which is high for me for most of my flavors but it's working well with JG Blend (ahlusion) where the coffee base can take some heat. I went to 25 watts and if I stayed there long it would get burnt. This is kanthal coils just FYI....
Same size as the Kanger Genitank mega - 22mm - no overhang. That vapes well too. No leaks on any. I like the air control holes on the Genitank a bit better but the Delta is easier to adjust - just that I have it cranked way down. I think the diameter of the mouthpiece is also a factor - biggest I've seen but haven't seen a lot. The Genitank mouthpiece is too loose to fit on the Delta without an oring replacement. I might like that better though.
