All in all, flavor/vapor production still don't compare to an RDA. Could just be me, but it's still close. First couple hits, flavor was muted, but that's just nature of the beast with fresh wicking. I let it sit for about 5-10 minutes before firing it.
I ran it at 80w, 90w, 100w, and now sitting comfortably at 110w. The tank gets hot VERY fast, which is why I'm glad they implemented the double-walled drip tip. Makes a world of difference.
One thing that I can say, is running the .2 @ 110w, this tank obliterates batteries. I put in a fresh set, and ~3 hours later, my Sigelei was screaming at me to "Check Battery" - It wouldn't fire 110w at below 68% battery life (my RDA fires .3 down until about 48% @ 80w)
In the end, I don't feel this is a RDA replacement, but it's a VERY good alternative, and so far worth the price. I bought the full kit which came with the tri-coil, the single coil, and the RTA heads, plus some organic cotton. In the next couple days I'll likely break out the RTA head and give that a go, the stock pre-built coil sits at (I think) 1.0ohm, so I'll likely rebuild it pretty quickly, if I even use it at all.
Lastly, I would like to confirm what you've heard, the tank DRINKS away juice. You'll be refilling fairly often if you chain-vape but the top fill feature makes refilling painless. As for leaking, I've read some mixed reviews and I can say that so far - upon initial use - I have not experienced even a single drip of leakage.