I took three 7 year olds to the movie and they all loved it, they were all star wars fans and knew before going to the theatre when in the saga this took place.
They loved the movie, although my daughter complained it was too loud at one point. I enjoyed it but didn't have huge expectations.
I wonder about the complaints of cheesy dialog, did you see the other SW movies? They are all full of the same type of banter.
This movie is worth the trip for the "new" star wars fans.