The Nagaoka MP series is, well, unbelievable. Grado is nice but very colored and not as dynamic as MP 200. If what you seek is reliability, value, ease of setup and replaceable stylus the Nagaoka series of MM cartridges is extraordinary in every way. My comparisons have included Grado, Soundsmith, Goldring 1042, Audio Technica, etc, etc. Try a Nagaoka and I'm confident you won't look elsewhere.
Best,
Sam
Best,
Sam