A similar question was asked earlier (“Can I do the same thing with Octatrack and sample chains”), and answered.
You’d have to read Korg’s description of “Wave Sequencing 2.0”. A lot is explained there.
And software vs. hardware… well, it’s personal preference isn’t it.
For example for playing live gigs, I know lots of people are fine playing live with laptops and/or iPad for playing samples and stuff. I got an Octatrack as my live sampler and later added other sample players. Somehow we all get along…