This is the first novel I've completed entirely in German! For that reason alone, I'm very excited and proud and I want to rate the book highly to mark my accomplishment.

Taking a more holistic view, the storyline is very simple, but engaging, and moves quickly. I'm sure children would find it fun, and adult German language learners will find that the context of the simple story will fill in any gaps in understanding. The language, despite being written in 1929, is largely applicable to modern German learners. The edition I read (easy readers publishing group) had a helpful glossary in the footnotes which helped translate (in Germa)  some of the older phrases and terms.

I found the level perfect for me at A2/B1, I recognised all of the words and grammar, and easily understood the gist of what was going on, but I still had to work hard to understand exactly what was happening. I definitely sped up as I continued reading, but it still took me much longer to complete than I would have liked. 

Overall, a charming story that has definitely helped me improve my German. I would like to revisit the text to spend longer understanding some of the grammar used (I still don't fully  understand separable verbs) . I'd definitely recommend this to beginner and intermediate German language learners.