I have to admit not much occurs in this episode, but nonetheless it's a very pleasant viewing. The only drama is at the end, and it ends up being not as significant as we are led to believe. I always wondered why they included the scene where suzuha threatens Okabe in the previous episode. This episode make it a bit clearer, we need to get Okabe thinking about how to avoid WWIII. This leads beautifully into this episode.
One other point that always causes me confusion, in terms of the world lines. IN some episodes it implies all the world lines co-exists, and when okebe moves between them its only his memories which are being moved. IN others we are led to believe there is only one active world line. IN episode 8 Okabe states that would the loss of Mayuri be less tragic if you knew another version of her was alive in another time line, or place. This sort of confirms the answer but then leads us to another question. If all the world lines are active why does suzuha disappear when the time line is changed? Lots of logic issue when we deal with time travel. Great episode, well worth a watch