From Winter, age 7: I really liked this book. Firstly, because stinkbugs are my second-favourite bug; and secondly, it was funny and I liked the speech bubbles.
From Sarah, age 33: I liked this book too. It has a great message that suggests that certain behaviours or aspects of our lives might be unhelpful in some contexts, but have a reason for exisiting and are helpful in others. This is a complex idea that requires critical thinking, and yet is demonstrated in a clever, aphoristic way through the story. Of course, that is probably not the element that will appeal to primary school children (unless they have a strong philosophical streak) but it really appealed to me!