Free Rein is a useful option for intermediate learners who want natural English without jumping into something too difficult. The vocabulary is not overly technical, though it includes enough variety to make the practice meaningful. Also, family-focused scenes usually make the context easier to follow. The story gives enough context to follow what is happening easily. The pace feels realistic without being constantly overwhelming, with an average speaking rate of around 107 words per minute. If your English is close to B1/B2, Free Rein can be useful for building listening confidence.