I got mine few days back.

first impression is the sound is not "balance" type. It is emphasis on the bass.
The mid and high is refine and detail compare to my old shure se102 and klipsch s4.
Instrument separation and soundstage is better than klipsch s4 and shure se102.
I find the bass is abit too much on certain song and could get out of control and bloat.

Overall the sound quality is at least as good as or better than iem with 3x more expensive.