Before you put your data in this, make sure there's a way out because Google has the nasty habit of discontinuing its stuff.
But tfa clearly says, "Your notes are safely stored in Google Drive and synced to all your devices so you can always have them at hand." - So, I dunno.
EDIT: dammit, down at the bottom - last line - " in the coming weeks you'll be able to do the same[view,edit,etc.] directly from Google Drive."
I do hope that Drive will contain Keep notes, though, as that would seem like an optimal solution.