corellian77 said:

Whether it's a teaser or a full length trailer, the goal should be the same: communicate to viewers the overall vibe of the movie, and instill a desire to see the film, without actually divulging any plot details which might otherwise ruin the actual filmgoing experience.

Based on that criteria, I'd say the trailers we've seen to date have been successful.

If they wanted to make TFA look as your usual Hollywood-style blockbuster, they did it right. Except that's not what I'm looking for.