CRT is a photo op downstairs with the great woman, and a meal upstairs with the Fairy Godmother and others. I believe when we went, the only "princess" was Mary Poppins.
For princess interaction, I would go to Norway. Cindy will not be there, but we had Jasmine, Mulan, Sleeping Beauty, Belle, and Mary Poppins. They come to your table, and the interaction is very good.
If it has to be Cindy, I'd go to 1900 Park Faire at the GF. Pretty good buffet, and Cindy and Prince Charming actually come to your table, as well as others. Also, to our surprise, Snow White showed up for a photo op prior to our dinner. She was only there for a short time, but long enough for us to get pictures.
IMHO, CRT is something you have to do once if you have a princess, but certainly not our favorite character event.