Really, really good! I liked the feeling it gave a lot.
The voice was very fun to listen to, and the music (although simple) was good too. My only real complaint was that the music/sounds can get overlaid over each other, like how you can get up before the voice finishes talking and it starts saying another sentence at the same time. The same thing happens with the music at the end.
It was a little short, but it was a good experience.