Ougi x Hanekawa banter must be one of my favorite things in the show, it's just top tier.
Also, gotta love that opening, man. Great quality lyrics, melody and visuals. Actually, all 3 of the Sodachi arcs openings are very good.
I think this is one of the episodes that go by the fastest in the series, the back and forth argument between Ougi and Hanekawa is just divine to watch, especially because Ougi's creepiness is more apparent here than in any other episodes so far since Second Season; I personally love the scene where Ougi slides her finger along Araragi's mouth, seeing the gloves instead of the usual sleeves just adds to the uneasiness of the sequence.
But I'd say the better crafted scene this episode should be the one in the begining, when Hanekawa and Koyomi were talking about Ougi and what they are doing about the situation at hand and Hanekawa is shown walking normally with her own steps, but Araragi is on a conveyor as if he were being "led" somewhere.
Quick reference, Sodachi's new apartment is room number 444, that's why Hanekawa made some comments about it, there's some bad fame around the number 4 in many asian cultures, as it is seen as a number of death, so much so that many apartment buildings in Japan actually skip it when enumerating the rooms.