After almost 2 and a half years, Rachel finally quits her job as a waitress at Central Perk, and it's time for her to move on. We get to see more character development, as she is finally ready to move on to some new challenges in her life. Of course, her friends are there to make the story very funny.
Also, we find out more about Phoebe's fight for the rights of the Christmas trees, and how will Joey act when Phoebe asks him to stop destroying the trees. Another character development.
Also, Ross accidentally breaks a little girl's leg and he's doing his best to make it up to her. The whole story with the little girl's father is quite good, and Ross's competition with the other little girls is hilarious.
So, to sum it up, this is yet another great episode of Friends. Definately a classic.