The only caveat is the installation process. Old libraries can be finicky on Apple Silicon (M1/M2/M3) Macs running macOS Ventura or Sonoma. You may need to run KONTAKT 5 in Rosetta mode. However, once loaded, the stability is rock solid.
official Synthogy Ivory II products do not use Native Instruments Kontakt . Instead, Synthogy uses its own proprietary Ivory 2.5 engine Synthogy Ivory Grand Pianos II KONTAKT 5.03 LiBRARY
Synthogy Ivory II Grand Pianos is a premier virtual piano collection that features three world-class instruments: a Bösendorfer 290 Imperial Grand Steinway D 9' Concert Grand Yamaha C7 Grand Important Compatibility Note It is critical to note that the official library does The only caveat is the installation process