Captain Tsubasa can be good for learning English if you already understand everyday conversations and want more consistent practice. The vocabulary is not overly technical, though it includes enough variety to make the practice meaningful. The pace feels realistic without being constantly overwhelming, with an average speaking rate of around 95 words per minute. Because the plot is fairly straightforward, learners can focus more on the dialogue than on figuring out the story. For learners around B1/B2, this can be a practical choice for building vocabulary range.