This arc is, by far, the best arc that I have seen in this series.
Overall, Sword Art Online II proved itself to be a better sequel than its predecessor. While Log Horizon establishes game mechanics and character development, Sword Art Online establishes the connection of humanity with the advancement of technology. There is nothing wrong with the concept but the narrative that the series took, in that we only see Kirito as the savior and everything else are damsels, made the whole series flat, overshadowing the message that it tried to convey.
While this approach is still prevalent in the second season, what I liked about it was how it finally was able to say what it was trying to all along. For instance, the use of VMMO as a therapy, as seen with Sinon in the GGO arc was conveyed properly by how it presented our characters and their traumas; It had much more emotion than its predecessor that got itself lost.
I don’t quite consider myself to be a Yuuki Aoi fan but after evaluating her performance in this arc and how she have reached a long way with her skills, I am quite smitten by how good she has become. Before, i’d pnly notice her raspy voice but now, I can feel the weight of her voice acting and how it breathes life to the characters. I have to admit, Yuuki Aoi as Yuuki is a perfect fit and without her performance, this series may not be as worthwhile.