This episode was rated one of the top episodes on many websites and it's my list for top episodes. I love back stories and hearing about a characters past. In this case you find out how Ted meets his friends and also how some of the other friends meet each other. All the stories were really good. What makes the stories so great in true HIMYM fashion, you only hear part of the story. My favorite story was how Lilly met Ted. What I have always liked about Lilly and Ted is that they were never more then friends.Even (spoiler alert) if the kiss did happen it was because both were drunk. When you find out who Ted and Lilly really kissed it makes the story of she meets Marshall even better. Other highlights include seeing college Marshall and Ted, Also another Barney theory. It may have some validity to it. I also enjoyed how future Ted can't remember the name of the girl. The best part was the "sandwiches." It is something you hear or see often.
Overall this was a great episode.