This episode is definitely a classic. If you were to watch it once you will fall in love with it. The answers to the questions are just so out there and funny. If you watch friends alot then you should be able to come up with some of the answers by yourself with just a couple that you didn't know. The lightning round was awesome having the guys win just b/c they didn't know what Chandler's job was and then Rachel making up some word.
I like that fact that while that is going on Pheobe is getting the embryos implanted shows that they aren't just showing the fun side of the gang but also the caring and serious side minus the fact that she was actually talking to the embryos.
Since this episode aired around the middle of the shows running time it also sets the tone of things to come in a way I believe b/c of what happens later on.