On the site of Penguin daughter Gütersloher Verlagshaus, the German publisher of Hallo!, a review was published by reviewer Janina. This is an English translation:

A beautifully illustrated book that teaches the little ones about the journey refugees must take to reach safety. It also contains short sentences that the little ones already can understand well. Among other things, it shows us how grateful we should be for our lives, since we receive more than ten kindnesses every day. Absolutely recommended reading.

Here is the complete review in German.