I only have one real problem with the movie, and that is the "Spielberg" ending. Throughout the movie we see total destruction of cities, but the one street, where the mother of the kids is staying, is almost undamaged. And then to top it, the son who didn't want to stay with the father but instead joined the army guys to battle the aliens, also appears here again. I would have found it better from a story-telling point of view, when he would have died in the fire caused by the aliens just minutes after he joined the army, as the father originally thought.
I enjoyed Enchanted for its most part. However, I thought Susan Sarandon's acting was the worst I've ever seen her do and the big climactic fight at the end was really too much for this film and just plain terrible. In overall, I like Ella Enchanted much more, doing a similar thing much more effectively. That's my opnion, of course, your milage may vary.