I know so many are saying it was dull and stuff but I found it entertaining to watch. I have never cried so much watching a movie. I feel like people are comparing it too much to the first movie. They think it should be exactly like it. I think it would be too boring to watch it if you already know what's gonna happen. Mary Poppins was a bit different but that's to be expected since it's a different actor. The children have different lessons to learn from when their parents are kids and now when they are adults.
This is just my opinion though and I think people should watch it them self to see what they think of it. It's better to watch it yourself than listen to any critic.