I have a Jason Wu body I haven't used much. I had Julie Newmar as Catwoman's head on it because it seemed the only use I could figure for it. Her knees only do 90 degrees at the and she can't cross her legs but otherwise she did okay for motion. As for clothes she's about one size bigger than Barbie and only wears their stretchiest clothes, can't share shoes at all.
As for toughness I don't know, her plastic feels like Volks EB legs if you know what I mean.