The first part of the exam is very good if you like to read and learn. It truly demonstrates the complexity of cotton farming, how difficult it was for white farmers, and of course how ridiculous it was for slaves. Very good experience.
The second part was "Know Power, Know Peace." It's essentially a haven for Black Lives Matter -- essentially anti-police propaganda. Very disappointed. It desperately attempts to draw from the first half of the museum that racism is still alive; in doing so, it essentially loses its touch of historical accuracy and instead tries to desperately convince the visitor that police officers are inherently bad.
I would recommend the bottom portion of the museum. The top portion (the second paragraph) is just nonsense propaganda.