I speak five languages and I have three kids. This is a well developed excellent product for children. The format is very inviting. An American boy Bobby only speaks English and his Spanish friend Maria only speaks Spanish. They both speak a lot and sing however, it is seamless. My kids have learned so much, but the important thing is that they ask for it all the time - making for lots of repetition.They just love the mysterious Senora Magica. A lady with " magic powers" who whisks them off to Mexico. BTW, the music is an important plus - the songs review a lot of vocab and are very catchy.The pronunciation is authentic and clear. Spanish is spoken with many different pronunciations, all over the world. This pronunciation is typically Latin American. It is important for learners to hear all pronunciations, in order to develop a good ear. We have all of Beth Manners' CDs and they are all phenomenal. We also like the coloring book.