It was exciting to see the Iron Sisters in this episode after their appearance had been hinted at. I'm also excited about the change of Sister Cleophas being Luke's sister. After Jocelyn's comment earlier in the season, I think most of the fandom figured we would see her in this episode. However, I had assumed that Luke's Iron Sister sister would replace Amatis (or be Amatis), so I was a little surprised when Cleophas mentioned her as well. Now I'm going to excitedly wait for Amatis to appear on the show as well.
I also wasn't expecting Cleophas to be a member of the Circle (especially not still a member of the Circle), and I'm wondering how that plot twist will play out. (It also has me thinking about Amatis and if her backstory will be the same if we see her.)
Izzy's storyline with the yen fin has, in fact, become a drug addiction storyline. I still don't get the purpose of this or where they're going with it, and I'm not sure that I like it. It was probably my biggest problem with the episode. That being said, maybe once it plays out I'll come to a different opinion.
So many other aspects of this episode were fantastic.
Maia and Simon's friendship was something I've been wanting to see in the show for ages, and this episode definitely gave us that. Their dynamics are spot on, and I can't wait to see them become even closer friends (as well as Maia meeting the other main characters). She seems to be starting to develop feelings for Simon, which I don't really have feelings for either way at this point (as long as that love triangle doesn't play out the way it does in the books), but I can't wait for them to have more scenes together. And for more of Maia in general.
Both of them searching for Luke and discussing what Luke meant to them was also heart-warming. I loved it. (Though I'm still frustrated that Luke was only in the last episode for several seconds.)
We've been waiting for Magnus and Alec's first date for ages, and it did not disappoint. I love the dynamics of their relationship so far. It's also wonderful that on their first date they confront the very conflict that led to their breakup in the books. I feel confident that that won't be the case on the show, which is awesome. They were adorable.
Also, I have to say how happy I am that the show explicitly discussed Alec's lack of experience with relationships and how, while it was initially surprising to Magnus, Alec wasn't ridiculed for it. I feel like that never happens in TV shows, books, movies, etc., so that was nice to see. And, of course, it was great that Alec was able to accept Magnus' past experiences without it driving a wedge between them. The two of them having respective experiences and being able to accept each other was so, so important.
When Jace interrupted them, I laughed out loud. I wasn't expecting Jace to show up at Magnus' house and ask to stay in this episode, though it does happen at one point in the books. I'm very excited to see this play out as Jace and Magnus' dynamics can bring a lot of humor to the show. It should be fun for however long it lasts.