I saw them and also saw Boxx at NCAA but can't really say
Didn't pay much attention to their matches.
Anyway Boxx is a national player, along with Frilling, Marks, etc..not that powerful, but could keep the ball in play..
Also Miss. doubles were pretty good..and if Nijssen went to 3-setter against Ellis, she must be pretty good too.
Sorry for not being of much help.