This was the most challenging graded reader that I've read so far. The reduction in the length, vocabulary, and complexity of the grammar was smaller than the first two books in this series (500 word and 1000 word). One of the stories was 100 pages long (altogether the book is a little over 300), and I encountered complex grammar and vocabulary that I don't find in other graded readers which are ostensibly at the 2500 word level. I think the difference is that the authors of those graded readers *make up* a story, and so the thought process is "what grammar/vocab can we put in this story that is simple enough for our readers to understand?", whereas in this case you *start with* a story and the thought process is "what do we have to take out of this existing story so that it becomes simple enough for our readers to understand?". I think with the latter approach you end up with a better product.
Some of the stories in this book read like real stories, and I was occasionally interested enough that I genuinely wanted to find out what was going to happen. I especially enjoyed a story about a guy who decides he wants to find a girlfriend, so he looks for one, and finds one. But then later he falls in love naturally, but can't do anything about it because he has a girlfriend already. Then his girlfriend leaves him for another guy. In the end, the guy realizes that he was too focused on trying to get into a relationship - exerting all his energy figuring out how to make girls like him - rather than investing in finding a girl that he likes. And he foolishly let his sense of obligation to his existing girlfriend get in the way when he found a girl he actually liked. The moral of the story (1) All is fair in love and war (2) don't overinvest in making girls like you.
I also enjoyed a story that was about a kid who wanted to go to military school, but his parents made him apply to medical school instead, which he didn't get into. So he spent a year being bored and then applied again, this time to military school. The second time around he got in. Moral of the story: don't listen to your parents.
Most of the other stories were about men leaving the countryside to find work in the cities and then cheating on their spouses left in the countryside, or about officials being corrupt but then eventually getting there comeuppance.
Today I've started the "Graded Reader 2000 words".