Episode 16 had a great premise, great jokes, tons of great interactions but it went too far too soon and all just for the sake of making Twilight crazier than she has ever been. They even went too far with the expressions, which had been a lot but still great during the rest of the season.
It really feels like an episode which had been a lot more entertaining if they had put some limits on the crazy. Seems like they said... "lets show the fans how much more crazy can Twilight go, because, you know, they love that about her!"
Not my favorite by any means, but definitely an ok episode, just to enjoy the jokes on it.