After working in high end audio for years I can say it's better than most of the garden variety cable but it's not the end all be all of cable. For digital sources I used to like MIT and for analog I like Kimber - not sure if they are still around I haven't fiddled with that stuff since I sold my tube gear - you think reefs are expensive - they have nothing on a hi fi fix

If you want to see some stats Vinh go find the latest stereophile reccomended components issue - they usually will have ratings for a lot of the cables - much of it's subjective but good quality cables and interconnects are one of the cheapest ways to improve your system.