I have owned the Isolink along with other Ensemble power products for two years. I think it is all great stuff. The isolink is the icing on the cake -- really does isolate digital signals from your cd player from the rest of the system. It does seem to free up the sound, make it sound more open and natural. I do like it a lot.
It's pricey, through, especially for one component. I would only recommend it from an economical perspective if you use just one for your cd/dvd player. I think it would be waste to add them to anolog equipment. Just my 2 cents.