Hey Jeff, you got my hopes up, but then that video is showing what I was trying to say. I spend 95% of my time in here from my phone, so might not have clarified well (but that video does).
By "sync" (current functionality in SONAR/CbB), I mean that an edit in the Piano Roll View or Staff View will mirror itself in the other automatically. Maybe "auto-sync" would have been a better choice of words, and this is what most SONAR/CbB users are "expecting" to see upgraded in my assumption. For Studio One/Notion, this sync is a manual handoff of data, but as that video shows, it will also pass VST information with presets (also shown in that video). Unless I have missed something, an edit in one is not mirrored in the other automatically.
That said, Notion 6 unto itself is actually a standalone DAW, and a pretty capable one. Being able to load VSTis, compose with them, and pass that information into Studio One with the VSTis intact is incredibly powerful. Notion is a very lightweight application (though the sample library is several GB), so it is the only app I loaded on a laptop I bought last Christmas. I thoroughly detest laptops for certain things, and agonized over buying one, but ended up getting a Lenovo Flex 5 15.6" for its tablet conversion, screen resolution, and screen size because of
this video (Notion 4 and Strokes+ on Microsoft Surface Pro). That video shows the "on the fly composition" capability of Notion well; and when finished, can then pass the song to Studio One.