Thought it was a bit over-the-top how much they hammered home that Walt was the one who poisoned Brock. I thought the end of last season with the shot of the flower pot was enough. Having Walt remember to throw away the flower when he's cleaning all the bomb-making supplies up and then having Saul give Walt the ricin cigarette and make clear that yes, Huell lifted if off of Jesse when he frisked him seems like really pushing too hard just to make sure that everybody knows what happened.
Everything else was great. Jesse being super excited over the magnets was my favorite part.
Just my opinion. But I think that whole driving home the Brock thing really made clear that there will be an eventual epic show down between Walt and Jesse. I mean, I think most of us figured that would be the case anyway, but now there's no denying it. They wanted that to be fresh in our minds for a reason.
The whole magnet thing/Jesse's reaction was great stuff.