I have had an ART1000 a couple of years now. It alternates with four other hi-end carts, vdH and Ortofon.
ART1000 is a great cart. has a clarity and precision that for me at least equals those others. On material like string quartets it's better. I think the weight and authority of its sound is a little less than Anna. About the same as A90, a bit better than the top vdHs.
I sometimes wonder whether it is the high mass of the Anna that does this. It weighs around 2x the others. Unfortunately that doesn't go well with my ultra low mass Aeroarm, so I use it on my second table, an old Zarathustra with Zeta arm. Big sound, but not as precise as the other carts on the Aeroarm.