OK, been using this mod for a few hours now and thought I'd throw out a few thoughts on it. Disclaimer: I'm still in the "Honeymoon phase", so I reserve the right to change opinion later as I use it over the next few weeks. But first impressions are worth recording... even if they make me look foolish later.
TL;DR- I like it. I like it a lot.
I got the black model and the only surprise when I unboxed was the finish. I thought it would be more of a matte finish like my other Picos, but it's shiny like enamel paint. Looks great, it was just unexpected.
Building the Coral 2 was dead easy and performs surprisingly well. I used the supplied coil which measure 0.22 resistance. I like that the airflow hole is as high as they could reasonably get it. I don't care for the drip tip, just a bit short for my taste. Some others probably love it. Easy enough to add my own. I wicked it a bit fat and zero issues with dry hits even with chain vaping. Maybe not the best atty out there, but really good none the less.
I started with 60w and default settings throughout, even the party lights (not a fan). It has good flavor, heats quickly, and really good vapor production. In fact, the clouds were a bit much for me. I dialed down the watts to 35 and got the amount of vapor I wanted but it was a bit cool and crackled and popped until about halfway through the draw. I went through the settings then and got rid of the party lights first then spent the next half hour adjusting the pre-heat and duration. At 35w power setting I wound up with 65w pre-heat and 1sec duration which gave the right amount of vapor for me, good warmth, and quick heating. Very enjoyable vape... very.
The bottle took a bit getting used to. It is soft enough that I have to push and hold to squonk. Just a push isn't enough. I have to hold it after I push for 2 to 3 sec. to let the juice migrate through the tube to the atty. I guess the other sides of the bottle deforms a bit to compensate for the force I'm putting on the front side so I have to wait a bit for the pressure to reach the top of the tube. Dunno for sure, but it makes some sense. In a way it's good because it makes it much more difficult to over squonk and flood. So not a problem, just getting used to the bottle really.
I would have preferred a spaced rocker for the +/_ button, but I've adjusted easy enough and don't use it that much. This button rattles a bit too, which I don't like. I can hear the rattle if I shake the mod gently or if I tap the button with my finger.
I have refilled the bottle once, only put in about 3ml initially, and this guy drinks the juice quick. Glad I make my own. When I refilled the bottle I purposely set the mod sans bottle on the kitchen counter to see how much juice would leak out. Surpisingly none. There was one fat drop hanging on the end of the tube but it never dropped on the counter... surprising. I expected a small puddle. Even if that one drop did fall I would have said well done eLeaf. And I took my time with the refill, even to the point of waiting to reinstall the bottle just to see if the drop would fall. It didn't and reinstalled without losing a drop. Not sure if it will always be that way, but I hope so.
The fire button was harder to push than I expected, but not uncomfortable. Especially true since I'm firing with my thumb. I find it equally easy whether I fire with my right or left thumb. Lefties need not worry I think.
Tonight I'll setup another atty with SS316L and TC, which is my vaping preference. I'll see how that goes.