I might be giving Sakurai and the Smash 4 design team too much credit here, but there are a lot of hints that suggest they wanted her to be played as a defensive-zoning character that can go on the offensive/capitalize well on defensive play.
That said, she has enough varied tools in her kit that it's pretty fine to find out on your own what style is best for you when you play. Elite Gaymer is apparently in the defense camp, while I play almost exclusively offense and footsies. I've also seen a few WFT's that are strictly zoning and heard from others that play a primarily trap/read style.
It's best to just learn what you can do and go from there to decide your own way to play. Be sure to check out the index to get a good idea of what those things are.