I hated the very beginning of this episode but I immediately warmed to the main bad guy after he took a bite out of a potato in the middle of schooling Sora. Naruto's slutty opponent was surprisingly fun, while she is hot she also uses lots of different techniques, something that most people in the main storyline don't seem to do so it was great to watch her toy with Naruto using so many different techniques.

While Naruto did look terrible against her he did manage to hold out for quite a while against a vastly superior opponent so I can't fault him too much. A melee focused meathead like Naruto would only have a chance against a mid-ranged technique user like her if he was fast enough to get in close and pummel her before she could slip away. Since speed was never Naruto's thing he's doomed to be outclassed until he either changes his fighting style or learns some tricks to effectively sneak up on people. His shadow clone/rasengan combo is a good start but it's just not enough to fool any actually decent opponents.

Sora replacing Sai is a bit ironic since he's obviously going to go through the exact same cycle as Sai. Good guy who turns bad, then turns good again when confronted by Naruto's special power of friendship.