This was intended only for my great niece aged 10, but her sister, aged 6 was just as interested in it! As expected, they dived in and made some of the more advanced constructions first. The few days they spent with me they kept using the kit without any prompting and obviously enjoyed it. The component parts were numbered rather than given their electronic names (reed switch, resistor, capacitor, etc) which makes it very easy to follow the designs. The younger girl quickly realised there was scope for improvisation and was constructing her own circuits with the lights and switches, surprisingly without blowing the (included) fuses. It remains to be seen how educational it turns out to be and if it continues to be an attraction after they have taken it home. But, if only for the entertainment value, it was a success as far as I am concerned. If it also promotes their interest in technology that would be a bonus.