This is a lovely cozy fantasy read. It's a nice story, easy to read and the inclusion of tarot was a nice touch for me. 
The writing style is more middle grade and at times very repetitive. There were parts I struggled to get through due to the repetitiveness, I was getting frustrated wanting the story to progress, instead of the dialogue constantly recapping what was happening in their adventure. I really enjoyed the first half of the book, after that it just started to trail off for me and I found myself wanting to read something else. 
I do believe fans of Legends & Lattes and Bookshops & Bonedust will enjoy this book, if you imagine those books were written for children. 
I don't think Li is a bad writer at all, as this really is a lovely story. But given it's their first book I believe they will only get better with time and experience. 

So, here's where it might get controversial for some, and I want to preface this by saying I mean no offence at all. I think inclusivity and diversity is important, and in some parts of this book it was done very well, the transition between pronouns, for example, was smooth and effective. 
However, I think there is such thing as too much and the amount of different social issues within this book just felt overcrowded for me.
Some of it started to feel like Li was working through a diversity check list when writing this book, and this kinda killed the representation for me.