It sounds better. Period. But you need a $2,000 laptop, an audio interface, and a MIDI controller. You lose the "instant on" factor.
Because the Kronos is a complex machine, a simple "auto-sample" isn't enough. Professional sound designers use a specific process to ensure the Kontakt version feels "alive": korg kronos kontakt library
Short checklist to evaluate any Kronos Kontakt library before purchasing It sounds better
The Kronos and Kontakt were never meant to marry, but with careful MIDI routing and sampling patience, they can enjoy a very productive long-term relationship. an audio interface
Korg releases expansion packs that can be loaded into the Kronos to expand the "library." Notable expansions include: