After a nice retrospective introduction, "Ms" finds its best moments in the emerged conflict between Walt and Jesse. The ever growing a-hole Walt can't take a joke once it's about his meth formula and it almost seems as if not even Saul's and Gus's interventions can calm the situation. But as I said: it seems. Gus has conceived of a phenomenal plan that involves the most glamorous meth lab to ever be on television and through this, we get to see his real power for the first time in the series.
In slightly related matters, Hank is determined to follow the small trail Jesse has given him and we can watch him getting a bit closer to the huge criminal business going down under his very nose. Anyway, I again didn't like this story part (eventually finding the right RV at the second search seriously?) and would have hoped to see Bryan Cranston a bit more often. For the small amount of scenes he was in though, he did a great job and excelled in being the bad guy. However, it looks quite different at the White household where you could, if you're being overhasty, sense harmony and piece. What really impressed me not only in these scenes was the subtlety with which emotions and ambiances were conveyed.
Thus, the ups were clearly in abundance over the downs with "Ms" and almost more importantly the episode showed the right direction for the ones after it.