A “curiosity-driven” new set alongside the DNA mods:
Short review/first impression:
Mod: ~1 month old, after using 21700s, I feel the battery life with 0.5-0.7 Ohm Resistherm coils is a slight “drawback”, but I wouldn’t say it’s terribly bad. Currently, I’m testing the 18650 version with ~1.4 Ohm SS wire.
All in all (understand this well: price/value), the mod itself is brilliant, its TC function doesn’t disappoint, quite the contrary!
It’s version V4.7, so the short issues (at least in TC mode) didn’t occur, although a couple of nonsensical “no liquid” messages popped up at first, which can be fixed by re-enabling “auto lock resistance”.
Material usage, ergonomics, design: 5*, size; incredibly small, even the small tank is large or slightly top-heavy.
Conclusion: For this price, I clearly recommend it (ordered from barabrume).
Tank: Freshly arrived YFTK clone Kayfun X Mini from Tisvapo. Material quality and construction are almost 5*, the airflow adjustment is a bit “weak/Chinese”, it doesn’t feel as robust and precise as other rebuildables, but it doesn’t interfere during use, so it’s not bothersome.
Flavor-wise, it’s top-shelf, but the original Arcana22 or clone Tripod2 have been better so far, though this is just the first build, and things might change.
Size is okay, weight: heavy 
Buildability: harder than others, small space, but easy to build.
Driptip is brilliant!
Liquid capacity is brilliant!
Price/value: worth buying, I suspect it will only get better, so I recommend it.
Wishing you all a nice evening and pleasant vaping!