I think that there is a lot to like about this teaser...but to be honest with you I didn't really get too excited watching it.
I think it's a really good teaser; it gives us a good view of the film's action, characters and style. At the same time, we saw most of the dinosaur shots in the commercials leading up to it, and there's nothing in them that really goes ahead and blows me away.
To be honest with you, I was more excited to see how the rest of the film was coming together. I have faith and Jackson and the people at Weta Digital are able to make good action sequences; from watching the production diaries I know they have big things planned. What we haven't seen much of is a storyline, locations finished, and all of that. The savages, Jack Black's Denham, the rest of the crew, that is the kind of stuff that looks really cool. It seems like it's coming together as a film, not just a special effects extravaganza.
I think Kong looks really good, not too worried about CGI Dinosaurs (They're dinosaurs, I really couldn't be bothered with how CGI they look) and overall this is an impressive looking film. I'm not all hot and bothered over this, however...give me a good film to put those action scenes into and I'll be more than happy.