Not the quality I was expecting.
I had previous been using some super cheap Kyowa stylus which had been ok, when I saw that there was some official Stanton Stylus available I decided to pay the extra to get a pair.
They really are terrible. I installed them and the distortion I am getting, especially from heavy bass, is awful. Actually unplayable.
I thought maybe they weren't set up quite right, so I went through the whole process of setting up the stylus distance, height, weight and ant-skate but still no difference. I put the old Kyowa stylus back on, and immediately the sound was better.
I'm really disappointed with them. :(