Definitely one of my favorite cubes.
I like really fast cubes, but also prefer stable cubes.
This one feels a little blockier than moyu cubes, however elasticity-wise, it feels pretty similar.
The magnets are a touch too strong for me, some of my thumb-F moves slip, but it's been making me do left-handed index finger F moves a bit more, and with better accuracy, thumb-F's are just fine.
It feels really good, a little sandy out of the box, even though mine came with a little bit of lube applied already; I expect the sandyness to go away, like most cubes do, but i'm enjoying it while it lasts :D.
I really can't believe how good this cube is out of the box.
That said, there is too much box/packaging. Made to look expensive, I believe they're paying at least 5$ more extra for the fancy packaging, which is probably costing us ~$10.
That said, they're making the cubes for profit, not altruism, and this cube is a winner.
Nothing is perfect, but I can defintiely see this being main-worthy.
I still like the YS3M ballcore+maglev a bit better, but this is very close.
The logo appears silk-screened on and can be felt, so that is something to consider.
I will update in a couple weeks with additional info should it become relevant. I haven't had any pops yet personally, but out of the box the tensions/elasticity is loose enough that it does look like it could pop pretty easy.
PS. The sound is bit louder than a lubed-up RS3V5 / RS3M (springs).
If you want a really quiet cube, I like the Dayan Guhong Pro.