Octatrack can’t run VST:s. But you can make any genre on it, any kind of track, any kind of production. As you mentioned, it’a sampler. The thing with the Octatrack is that it goes way beyond what a sampler traditionally is considered to be, even those who bend samples quite far.
If you just like to play the guitar, plug it in, record it, add some drums and fx, maybe a nice vocal track on top. And you’re good.
If you’re a classically trained pianist, set up your grand piano, record your sonatas and add some strings if you like.
If you’re the next Deadmau5, drop or record loops, one shots, modular mayhem and their cousins, put all this together into a track in the Octatrack, and then take it to the next level. Bend, slice, warp, twist and resample. And the, invite the guitar player and the pianist and have them layer their stuff on yours. And then warp it again.
The Octatrack can be any genre or style. It is, in fact, your style and only your style. It’s not blips and blops, it’s not singer songwriter, it’s not EDM, it’s not trance or techno. It’s you.