This is purely anecdotal, not data....
People in my Hi Fi club have had issues with Sumiko stuff, actually. The Blackbird line has had them sending cartridges back.
Can't explain it and that is not meant as an implied truth about the line.
I am very fond of Ortofon cartridges. If there is such a things as house style, I like theirs and keep several.
I love my old Shure V15 Vx MR. It is a fun foundation item and I have played with aftermarket styluses. So, brand loyalty in a way that allows mt new explorations...variations on a theme, if you will.
In our club, there are several Grado guys and they seem to sound pretty good as a group of products.