How was it?
It was all right. It's a bit long and can get dry at some points but it was an enjoyable movie nonetheless. I'm not a movie critic though so maybe what I consider "good" isn't so good in your opinion.
I don't know how accurate the material is in the movie since we didn't really learn about Emperor Puyi's life in detail, but I think it captures most of the important things in his life though (i.e. childhood, marriage problems, corruption of the government, dealings with the Japanese, etc.).