After the Liza Minnelli cameo is over*, this is an endlessly long and boring move that is incredibly gauche in its excesses. I had plenty of time to think about and feel sorry for Carrie, Charlotte and Miranda all who seem to be desperately clinging to their youth in a way that makes them highly unattractive. Samantha seems to have made some deal with the devil in that she is much older than the others, but yet manages to look much less plastic and also younger.
*seriously, watch until she does her dance number and then turn the movie off. There is nothing here for you.