We absolutely LOVE this cube! I bought it for my 5m nephew...and although he can't quite sit up on his own yet, it is still an entertainer for him. Anytime we want to distract him, we start up the magic cube! The sounds are good (not annoying) and becos you can add and subtract any "instrument", it is not boring. I do wish the lights were brighter and more visual, but this is becod the cube itself is so colorful. Great product!