Other than the fact that Aurra has to be left out in LOS most times in order to do any shooting, I do like it. If you can manage to wait until the end of a round to move both her and the Noble, and then move her back out of LOS early in the following round, you should be relatively OK. 28 Defense is good and all, but that's still about a 50% chance for a lot of shots to get through to her from most of your top pieces like Boba BH, Boba Merc, and Leia or Obi FS boosted Han Scoundrel.
Would definitely pack some powerful defensive punch though between Repulse and Sweep. The only thing I might consider would be dropping R2PO for R2 and more activations, but that probably depends on your local situation and how much you face CEs. Of course, for me, I end up forgetting that I even have Disruptive 90% of the time (cost me a GPL game on Vassal Monday night), so that's probably why I tend to not play R2PO either.