The Aspire Nautilus just came in, so I threw some juice into her and let her rip. Been using it for a half hour. Complaint first off, the drip tip - its larger and poorly finished compared to the KT Protanks, and I could feel a sharp edge on the inside of the hole with my lips and tongue. So, I swapped it out with a Protank 3 drip tip, and fortunately with a tiny little play it fits the Nautilus. The couple of draws I found the airflow ring was virtually shut and I had to rotate it to let more air in - there is a very short range between "I can't get anything" to "full-out flow". Once I found what I liked, the draw was smooth and the vape volume huge. This isn't necessarily a good thing unless you like to blow throw juice like a madman. If the KT Protank 3's blew threw juice with the dual coil, I can imagine this one is going to as well. One thing I found was the temperature of the vapor is much cooler simply because of how much bigger this tank is - I like that. And if you want more heat, I find on the iTaste where you would set a KT Protank 3 to 10W, this one gives the same temp at 11W. And you don't have to suck as hard to get a full mouth of vapor. I like "big" and I like the look of "Glass". This thing reminds me of an old fashioned radio vacuum tube - I like that look but YMMV. So for now, 30 minutes into it, no leaks, no badness, it definitely lets the flavor through the way a KT Protank doesn't - right now its my go-to and I'd be tempted to grab a couple more to have more than one juice going. Like the iTaste 134 - Protank 3 snapshot, I will come back in 24 hours and report anything that sets in once you really rock her for a few hours.