Don't read this until you saw the episode. This may contain some spoilers.
The producers did a good job of getting them back together slowing setting up. But more on that later.
That was a great start of the episode. It was a shot at Friends but it was done a light hearted way. Swarley. What a great name and the jokes never got old. How Chloe got Barney from Swarley and I think one reason to believe Chloe was not all there. When you watch this episode, you don't realize it.
This was another classic story telling of two different tales. Your opinion of Chloe changes a lot in this episode. You went from thinking she's cute, to crazy, to normal and back to crazy. More on that soon. Ted and Barney had it right on the head about her.
The ending was great and the producers and writers did a great job of setting up Marshall and Lilly back together again. What Lilly did to Marshall, even from the biggest feminist can be seen mean to Marshall. At the same time the door was not closed on their relationship. It was a nice touch that the same place they broke up, they got back together.