i only have one word to say...
AWESOME!
Here is my short impression..
Comfort:
The first thing i noticed when i wore them was... Oh So Comfy!
i thought they will be big but they are so small! (and my ears aren't big!)
i have tried the default clear tips + medium and large foam tips and i like both the medium and large ones... (time will tell which one i choose, also ordering medium Olives soon)
can totally sleep wearing them!
SQ: (with PC using 'ASUS built-in SupremeFX II 8-CH Audio Card')
For now, i have tried classical, rock, pop & B (Bollywood soundtracks)
first impressions --> they suite all damn genres!
i can't find a song in which i can hear the 'SSSSSSibilance' some of you guys were talking about (good for me :P)
superb detail (detailed, clean & crispy highs + smooth and silky mids)
superb bass (deep deep deep accurate & punchy bass and not at all overpowering)
The more i listen to them the more i like them!!
even at low volume they produce superb sound and when i pump up the volume just a little, I'm in Bliss!!
have yet to find anything wrong with them...
looking forward to taking them to gym today

Thank you Westone! and thank all of you guys who shared all the great reviews/impressions that made wanna buy W3's! (Seriously, don't hate you guys for making me spend my money

)
I'm very happy i bought W3's and will be extremely happy if they last me a couple of years.. which i think they will because of the top-notch build quality (Specially the Cable!)