I enjoyed the grammar structures, you can feel it was not foreigners speaking Chinese.
That being said, the vocabulary list is a bit weird. I know most of the words in it but didn’t know some words that weren’t in it. It’s the first time it happens to me with a graded reader.
The character development and range of vocabulary is well done. There are quite a few time jumps that can feel a bit disorientating. While the plot is good and somewhat interesting, it is not a high level of interest that is felt towards it.