Years ago I tried the Shelter 501 mk ii based on reviews and comments in Audio forums. At the time the cost was a real leap. I felt it was a big waste of money and sold it after a few months. Looking back I felt it had cost vs performance issues. It was not worth the cost for what I got. Since then, I don't spend more than $500.00 +/- on cartridges and stick with AT, Denon or Ortofon.