Good, but you get bored of it easily. I suppose it depends on the child, but my son didn't spend much time with it.

Maybe my expectations were higher than they should have been, we are just talking about something completely basic. The organization of the pieces is good though, of course, I assembled it myself; my eight-year-old daughter couldn't do it. I had fun during the process anyway. The final result is cute, but don't expect anything wow, the little robot has two motors and a board, it's not much.