Does exactly what it is supposed to, keeps little fingers away from sockets and the switches! It is a bit of a pain to open, but that's what helps keep the little fingers out! And it is only suitable for a standard plug size, not for chargers etc but apart from that it works very well. The only downside is like others, mine didn't come with the fitting instructions, but basically you need to unscrew the socket from the wall, clip the cover over the front of the loose socket face and then screw it back onto the wall, will take less than 5 minutes to fit.