This question is asking for an opinion about Maya Angelou’s poem “Caged Bird.” This means you have to assess and analyze the poem to determine what you find appealing about it.
Personally, I enjoy Angelou’s use of vivid imagery when describing the free bird and the caged bird. When I read her descriptions of the birds, I can feel the carefree freedom of the free bird as it soars through the air. On the other hand, I can feel the desperation of the caged bird as it paces with clipped wings in its cage. Because Maya Angelou is so masterful in her descriptions, I experience the breeze as the free bird “leaps on the back of the wind and floats downstream.” When the caged bird sings,in spite of its circumstances, I identify with its song, “for the caged bird sings of freedom.” The imagery evokes emotions within me.
Others might like the lyrical writing, or the message of the poem. Even though the question asks for an opinion, it is important to use the text to validate your choice.