Honestly, I wanted to like this book and I did make it all the way to the end, but I found myself hoping that the FMC would stop with the long internal talking. It didn't add anything to the story and it was like she was just spinning her wheels in one spot for the whole thing. She spent a lot of the book zoning out while people were talking or losing enormous chunks of time.
It's amazing that she manages to get anything done, considering how clumsy she (and others) felt she was. She falls and trips a lot, or drops things and breaks them. Other characters are constantly commenting on how surprised they are that she's such a genius because she's apparently such a huge klutz. She veers really really close to being just a straight up trope, with her personality flip flopping all over the place and her ~mad skillz~ even though she's only just graduated from the world's university equivalent.
Yes, there are savants and people who are really good at a number of things but she comes across as extremely young to have mastered multiple forms of martial arts in addition to going to school and running her apparently lucrative side business on top of her secret job.
My final problem with it is that there is way too much trying to be unpacked in just one book, which makes all of the threads seem rushed and unfinished. In one book she's graduated, met a ton of dudes, had her estranged parents break into her apartment (more than once), and acts like a magitech vending machine. This doesn't really leave a lot of space for world building or exploring the cast, which means you only get surface level details about the people she meets and most of it's from her constant stream-of-consciousness monologuing. It does touch on what appears to be the central conflict of the series, but even that isn't exactly explored beyond "all these groups are terrible people" and the loss of a character that's mentioned off screen a total of three times.
The last few chapters and the cliffhanger ending that was picked just solidified my decision not to read the next book in this series. It might appeal to someone who doesn't mind an FMC with this kind of personality but it's just not for me.