The ART9 is as musically satisfying as any, and a champ at getting out of the way and just letting the music flow.
What does this mean, really ?
It doesn't highlight any particular part of the frequency spectrum. It is uncolored and self effacing rather than adding embellishment. Another way to describe it, it does not sound "hi fi".
It does preserve PRAT, detail, soundstage, although I've heard other cartridges do certain of these things better, the ART9 is a champ at keeping everything in perspective.
It is currently my favorite and I see no reason to pay more for anything else, even though I could afford it.