Tbh I hoped I would love this book more than I did, since I very much enjoyed both "I kissed Shara Wheeler" and "Red, White & Royal Blue". And there were a lot of things I liked about this one, too. I still like McQuistons writing style, it was funny, I loved the friendships they created in this story - and I totally get August, I would've fallen for Jane too, she is so charming omg. 
Maybe the set-up of this one just wasn't really my thing. I was a little sceptical before starting the book bc I wasn't sure if I liked the idea of one of the protagonists being stuck in the same place throughout the story. Turns out it was part of my problems with it, since it made Jane ... kind of passive. I mean yes, she does things; mainly, she is an important aspect in Augusts character developement and I love how supportive she is of August. But I would've liked to see her be more active in the plot part of the book, which is trying to get her out of the subway. Instead it feels like she just goes along with whatever August does to figure it out. Sure, August is the one who has the skillset for this and she should be able to do something with these skills in a story focussing on her, but still: Since it's the only plot point Jane can actively have a part in, I would've liked to see that happen more. (Following sentences aren't spoilers per se, but might turn into spoilers when you start reading, bc you might piece together what I mean - maybe skip to the next paragraph if you don't want to read it.) Oh and on that mystery solving note: I know this book isn't mainly about solving mysteries, but I got a little frustrated bc the moment specific little things were mentioned, I knew why they were important to mention. And then they just sit there. It makes sense for August why she realistically would've only cared for it when she did, but I couldn't help but be frustrated by knowing that they could've figured a very important part out way earlier on in the story. 

There was also a little very subjective thing I didn't enjoy, which was the "need to save a small business" aspect. I know it's a well-liked trope and that's totally fine, I also got tropes I enjoy despite them being the same thing over and over again, but this one just isn't one of them for me. 

Lastly a quick question: Where did Noodle go? I'm genuinely not sure whether I missed his apperances or an explanation as to why he just wasn't mentioned at some point?

All in all I think I get why this book is so well-loved and I guess I'm a little sad that I didn't share it to the same degree. I think it just came down to there being tropes and general storytelling aspect I just personally don't like, so people who don't care about the same aspects will probably have even more fun with this book than I did.