At all? I mean, they clearly wanted a Marth-style attack, but I think they fell flat. Being able to cancel into a roll... isn't helpful since guards aren't direction dependable, so no crossups.
I don't like not using every attack in my arsenal, but I feel like Nariko has the most useless ground square attacks. Is there any reason to use them? Do they combo into anything? Only down square seems useful in any way.