Pros: Engaging mids, decent clean bass, non-aggressive highs
Cons: Active noise cancelling simply did not work in the 2 pairs i have tried (1 original, 1 replacement)
Bought the active noise cancelling version of these as a daily deal on Amazon for <$20.
Active noise cancelling completely broken on both my original unit and the replacement - so on one hand the quality was horrific.
That said, I really enjoy their overall sound - slightly warm, bass present but not overwhelming, polite treble.
Shallow fit IEMs not designed for good isolation. Not that comfortable to start with, but growing on me over time.