So far, I'm LOVING it. Still very new to this, plus i'm not very good with describing stuff but: I'm coming from the likes of X5-iii (last one I had). Seems to be fuller bass/sub bass (I was listening to the new DaftPunk collab - Overnight by Parcels). From what I hear, the PRaT and layering are just amazing. And the voices OMG...i can't remember what song it was i was listening to (iirc it was traffic) where i felt like he was RIGHT THERE near my ears clear as crystal. While it wasn't "OMG i'm discovering new sounds i've never heard before" yet, it certainly is revealing, and revealing enough to distance me from some of my poorer recordings even more than I"ve done so far. Balance between the lowmids and the high mids to treble are a bit different: low mids like male vocals are slightly more forward than I've heard before, but the layering I'm hearing is certainly better than X5-iii or even dare I say M2/M2 combo (from memory) which sort of makes up for it. (P.S i'm a little sensitive to low freq. sounds, so this isn't always a good thing esp. in songs/recordings that are badly done with balancing and layering the bass with mids and highs properly). That being said, treble is a lot clearer than I recall hearing from other sources - like guitar strings and the like (is that treble or high mids?). I'm hearing guitar plucks that I'd usually not pay attention to before.
Sorry I can't be of more help, lol, as I said, I'm still a bit of a newb at this.
P.S: the songs I listen to are mostly early progressive rock and a few other genres from that era like Blues Rock, Psychadelic, Proto-prog (so Jethro Tull, Pink Floyd, Traffic, Dire Straits). WIth a couple of exceptions like Daft Punk.
