Pros: Fantastic detailing, layered and open presentation
Cons: Extremely bright. Non existent bass even after trying 7 different tips
Summary of my experience with these:
Build: Feels cheap and plasticky. In fact the box appears better made than the earphones. :)
Treble: Very detailed, forward and sharp. No real sibilance BUT is very fatiguing after even after short listening sessions
Mids: Again very detailed but there appears to be some forward and some recessed elements depending on the track you are listening to. The soundstage in the mids is great. Very wide and layered.
Bass: Very weak. I even tried my gel custom fit earbuds to ensure the fit was perfect but it didn't really help. These fall off badly with any electronic bassy tracks. Just feels like there is a massive hole in your musical experience and therefore I cannot recommend these for all round listening.
Overall: Very disappointed given the glowing reviews I have read but if you are after great detailing and don't mind a noticeable lack of bass then I would give these a try.