Pros: Deep bass, Soundstage, Almost perfect sound, Comfort !
Cons: A lil veiled sound ,a bit grainy in the highs.
This is definitely an upgrade to the PX 100ii's.
They need burn in to tighten up the sub bass. atleast 30 hours.
After burn in, they sound magical.
It's a great product and a must have to all px 100ii's fans.