Went from a bit disapointing Beyerdynamic DTX101iE to Vsonic GR02, and I am in awe.
Fantastic earphone, probably the best I've ever had. (And I've had a few, I change once a year because they all broke after some time...)
Very surprised, and pleased by the acoustic isolation, I can't hear me walking, which is really strange. And the basses are huge! Never had earphone that delivered so much on this point.
Overall the sound is a little less pure, clearly there is more bass, but that doesn't mean the mediums and highs aren't correct. They're perfectly fine, and theses earphones won't saturate, even at high volumes.
Quality seems very decent, they look solid, and the wire is absolutely frictionless. Tons of spare tips(but only one biflange, which is by far the best), and a little bag.
I am truly impressed, they are more than twice cheaper than the Beyerdynamic, and to me, they're undoubtedly better all around.
If it wasn't for this thread, I would probably never had heard about them, so thanks OP!