We just returned from our trip; we stayed at the Poly. We had a PS at the Marrakesh one night, and knowing that my DD (who is 5) would not enjoy that, I made a reservation for her at The Neverland Club (Poly's child care center).
She loved 'jumping through the window' and when we picked her up later, she couldn't stop talking about all of the fun she had.
The next night (this past Friday), we had a PS for dinner at Boma's. My daughter begged and begged to go back to the Club, so we called and we were lucky that they had an opening. She loved it again! She said the 'teachers' were so nice and friendly.
(P.S. I wasn't sure if she would initially 'like' going, so I had told her that she was going to Peter Pan's club that night, and it was for KIDS only - no parents allowed! She thought that was pretty 'cool' - to have her own club that we couldn't go to! It gave her something to look forward to!)