I have a lot of mixed feelings about this book.
First off, I absolutely adore steampunk as a setting and as a concept. Steampunk, like many (all?) punk genres, is ripe and eager to showcase class separation and conflict. Steampunk succeeds at also being able to raise environmental concerns. Both of these ideas are used to great extent by Colby. The class separation is a key feature of the world, and Aya always marvels at the wasteful ways the nobles use water in a world in which it is scarce. This is probably the most steampunky book I've read and I really enjoyed that as well.
Aya is a fine protagonist. She's clever and has a lot of experience with her father's trade, allowing the view from her head to be enjoyable. She doesn't really experience a lot of growth, remaining pretty flat throughout. Aya learns things, but it doesn't really come out in the writing. There's a scene near the end of the book in which a character talks about how she's grown and changed, but that kind of slapped me in the face because I didn't feel the same way as that character. She's also incredibly naive, which is a great flaw for a main character in a story, but I don't think it was used to its greatest extent. It led to a great climax, but it had more opportunity to pop up throughout the book.
That leads into some of my other issues. Most of which can be summed up with the tea shop chapter. Here, especially, was a great opportunity to show off Aya's naivety, but Colby doesn't really take advantage of it. Aya doesn't have the experience of backhanded compliments and gossipping the noble women do, so it felt very strange that Aya came out of the conversation as the "winner." It also really didn't serve a purpose in the grand story. It was nice to kind of flush out the world, but it could've been used a lot more.
There are some other issues as well. The pacing is really fast, taking place over like a week when I feel it would've benefitted from a timeline of a couple of months. Courting is not a quick or easy task. The writing itself also isn't super great. Except for the occasional open door scene or dropping of profanity, the book almost reads like YA.
The ending was very good, though. The climax was excellent, allowing Aya to realize her naivety, showing off the differences between the male love interest and his father, and ending the book in a way that subverts expectations. The last 3/4 chapters alone brought this book up to 3 stars, giving me a satisfying ending when I had kind of stopped enjoying the book.
April 2025 Edit: Sometimes, you'll take extra time to process a book and think about what it did well or poorly. I can't put my finger on it, but the more removed I am from this book, the less I'm willing to say this was a very good read. I still think it was a very good ending, but I had a rough time getting there. That leads me to bring this down to 2 stars.