My attention was not 100% on the TV when this aired, so I'll have to catch one of the re-runs this weekend, but I did enjoy this episode much more than last week's, and I don't think that's just because I wasn't paying attention fully.
I agree with all the common themes expressed here: like that Branch's recovery is being portrayed as "gradual" (by TV standards, at least), liked this week's mystery much more, like Matthias because he's a realistic foil for Walt (and not a one-dimensional, twirling mustache antagonist).
I was paying 100% attention during the scene where Vic blunders her way across the arena. My gut reaction was that they were playing that for laughs ("Oh, that Vic!"), but upon two seconds' worth of reflection it struck me as a completely disrespectful act on her part. I can't see the writers giving her truly "unlikable" traits, so was this just a miscalculation on their part?