Crimson Music Links are excellent interconnects. I pretty much use them extensively, having demo'd and owned many other IC's, including Tara Labs, PAD, Cardas, Gabriel Gold. WyWires ICs are close, but not as open and resolving as the Crimsons.
The Crimson speaker cables were not as good in my system as Clear Day Double Shotguns. They just sounded a little too lean for my taste.
Overall, the Crimson Music Link ICs and SCs are exceptionally open-sounding, offering terrific resolution and a wide, deep soundstage. However, they don't add warmth, so if you are used to PAD or Cardas, you may not like the Crimsons. But they are excellent cables if you are not looking for tone controls.