This IEM is very comfortable to wear for longer times which is not the case with most other IEM I have used in the past.
Sounds really great for this price. Vocals and instrument separation is superb. Soundstage is neither good nor bad. Bass is heavy, I felt missing the sub-bass.
It doesn't have ANC but passive noise cancellation is great at 65% of the device volume when we have right eartips.
Foam eartips gave a good seal and made the IEM sounds better. I don't like the bundled silicone eartips, worst quality.
I'm enjoying the music! I love it even though it has some problems in certain areas.