I bought this for my nephews and niece in the US as I live in Australia. It has been such a lovely way to keep in touch with them. I wake up in the morning to their messages - they sing, ask me questions or tell me about their day. It's been amazing. It's a really easy interface for them to reach out to me and the app is really easy to use. My sister also has the app installed and we both share the messages we get with each other.
Really recommend this for long distance families - I want to get one for my other nephews and nieces!