Great review! My thoughts were exactly the same! I loved the animations, looked really awesome and lifelike. I think Pixar is going to score this fall, could be some really high numbers for it.
I think this is exactly what a teaser should do: tease. So many teasers today try to jam pack and show you everything of a movie, so by the time you see the final trail or even watch the movie, it's kind of like eh, seen that scene already, oh it's this scene again....and so forth. I thought this teaser showed us the graphics/animations, had great score, and really just a nice slogan and enticement. Really great job, I actually (this teaser) makes me want to see this.