I thought this episode was pretty good....I found the B-story with Varrick and Bolin to be far more entertaining tough. While Korra, Asami, and Mako getting back together was sweet and had me simmering in a pool of shippy feels, I felt that the reunion was a bit...quick. If I hadn't seen somebody in 3 years, the first thing I would NOT say is "Your hair looks good" and give a second-long hug. And Asami snapping at Korra felt a bit OOC on her part. The two seem to be really close, so for her to yell at Korra when she's been gone for 3 years is odd. But Mako and Korra's bickering was kind of understandable.
Now I feel the need to notice the juxtaposed behaviors of Wu and Varrick to their...lackeys, Mako and Bolin respectively. I feel like Wu is what Varrick was like when he was a kid. Spoiled, overly-pamepered and physically and mentally unable to support himself without his "best buddy" who secretly can't stand him. Mako could very well be how Xu Li behaved when she first started working for Varrick.
While this is all cool and interesting though, Varrick's current character arc appears to be him learning to be more considerate of others. To have Wu do the same thing would be repetitive, so I hope they do SOMETHING for this guy so he contributes more than just headaches.