As title, looking through the Argos catalogue today and saw some of these and thought hmmm maybe i should invest in one?

Id just plug in all my high value things like stereo, pc+ moniter and the ones i was looking at in Argos even have points to plug in a phone/broadband etc.

Guess its worth getting for £15-£20 if its potentially protecting thousands of pounds worth of gear

Anybody else got one? and more to the point, do they work!?