Hi bay24. Just got my S2is today and initially I would agree with the tends to the bright side. But it is a tiny tend and you can always make use of the no quibble returns policy.
My initial impressions, having listened to my tester tracks are;
Massive Attack 'Angel' - almost complete loss of bass distortion and the miaow sound at 41 seconds is clearer than before.
Both Gomez 'Whippin' Picidilly' and New Order 'Regret' sound a bit more open. On both treble is a bit clearer and sound stage has widened slightly. With 'Regret' there is a bit more vocal sibilance with Bernard Sumner's voice, but the cymbols are easier to define. I have not noticed any effect on the bass at all.
Ash 'Oh Yeah' - a slight brigtening of the sound, but not much difference at all.
So overall the higher up into the treble the more difference. But I have noticed that the cable I had before is not quite the cheapo get you going one I thought it was. It is a Choseal from China, who also make some pretty high end silver and copper interconnects.