Considering how little Marc Webb has been saying Rhino is actually in the movie (well, technically he says Paul Giamatti isn't in the movie much - the armor could get way more screen time) it's weird how much this trailer emphasizes him. Then again, it's like this trailer wants to take back a little of how much is revealed so far. Certainly for a movie in which Electro is supposedly the principal villain, he is not emphasized much here.
The CG is more polished, which makes the film seems less tacky. But I'm still concerned we've already seen every surprise the movie can offer.