We did the PSB a few weeks ago and it was excellent. I highly recommend it. I took DDs 2 & 5 yrs old, and DS (10) tagged along. The breakfast is really good, although that really was secondary to us. The princesses were beautiful, very welcoming and nice. We saw Belle, Snow White, Mulan, Jasmine and Sleeping Beauty.
Our PS was for 8:50 and we arrived at Epcot at 8:00. We arrived at Norway around 8:30. After checking in we waited a very short time before the "good morning ceremony" started. I did not even know about this. All the wait staff came our with chimes and bells singing a good morning song in their native lanugage. The the master of ceremonies introduces the princess of the day - a little girl picked from the crowd. She wears a crown and holds a wand. All the little princesses are asked to come join her in wishing the door to open. It is a very heavy door and needs many wishes to open. It was ar eally cute ceremony. The castle is beautiful inside - really full of character and the CMs are all very pleasant.
We were seated ahead of our PS time. Once the drinks were poured the princesses started making their rounds in the room. Each princess came to our table, chatted, signed autographs and posed for pictures. They were all really nice and we did not feel rushed at all. Jasmine kissed my 5 yr old on the cheek leaving a big lipstick print. Mulan sany a song from her movie to my 2 yr old. Sleeping Beauty was so beautiful and friendly.
Although the girls did not eat alot, I consider paying for the expeince worth every penny. I would definately do this one again. Aside from wanting to actually eat in the castle, I cannot imagine anything else being better.
I think that at Cinderella's dinner you will not get to see as many(if any) other princesses.
Good luck.