i’ve been in your shoes - bought a snow a couple of years back intending to use it with my ot, the way you are asking about. i ended up selling it after a year of frustration. your experiences may not echo mine, but i’ll tell you why we didn’t get along in case it helps.
the snow is for most purposes as powerful as the keyboard viruses, but programming it requires a computer that runs one of a few (well-known) supported daws if you want to get beyond the basics. that doesn’t sound bad on paper, but i found the ti system access has come up with to be hard to manage, though i was running ableton on a mac … it was buggy and hard to figure out, partially because of the poorly organized manual that was clearly aimed at keys version owners. there was a fairly active user forum with helpful people on it, but i felt like every time i set aside some time to spend digging into the snow, i got stopped by some issue or other. basically i felt like i owned a diamond mine buried under impenetrable earth, so it was no good for me.
the sound was heartbreakingly good, and a keys model remains on my want list. but if you can, get the current owner to show you how he’s used it. if you can perceive a decent workflow for yourself based on what you see that will allow you to create patches, you might have a far better experience than i did. if.