Just at the beginning of the week, it arrived as a kit with a Z subohm 2021 ‘poris’ tank included from a domestic distributor.
I also received two types of atomizers with it. A 0.2 ohm, which is pre-installed, and a 0.4 ohm. I tested it with a cooling strawberry liquid called Leviathan, mixed to 10%, which had steeped for almost 5 days with the cap left open as much as possible.
So far, I’ve only tried using it in two modes during my testing.
In the mentioned Smart and Eco modes. Since I’m still the kind of psychopath who mixes liquid with 18mg base liquids, I started with caution, but in Smart mode, I managed to find a wattage that isn’t a “liquid killer”. In other words, it doesn’t drain the tank in seconds. In Eco mode, much larger vapor is produced, but it sucks up the liquid very quickly. For now, the only negative I can mention is that the battery drains at a tremendous speed, and in Eco mode, it sucks up the liquid like a sponge, so I will use this as an evening chill device, as a “go-to” vape. For that, I still have my Vaporesso, which I mentioned last time. I’ve already paired it up perfectly. For my good old relapse-prevention device. But I’d also like to mention that the flavor reproduction is incredibly brilliant because the cooling strawberry liquid shown above comes back literally as if there was a good rosé wine in it. 
It might be different with an RTA tank, but I’ve never done that before, so I’m still scared of it.
Oh, and before I forget. Thanks Kinga for the writing and the report.