Hape Magic Touch Keyboard Kids

The quality is good, it's durable and my kid loves it, but I found the flat/sharp/black keys painted on the keyboard to be deceiving... primarily since they don't play any notes.

From a musician's point of view it's not a very great instrument. Black keys are just decoration, so there are no sharp or flat notes. However, from a child's toy point of view it's very good. Plays some different sounds and lights up in different colors. It's durable so you don't have to worry about it getting broken very fast. The volume is not that loud so the child can play with it in any occasion.