just got back from South Africa holiday - adapter worked a treat, unlike some adapters other fellow travellers in my group had purchased. Mine was therefore in great demand. Worth every penny (and it didn't cost too many of those either!)
I was concerned that the plug would not fit before I went on holiday to South Africa as it seemed so big. No worries It fitted perfectly. We travelled around the southern cape and did not have a problem. Worth having, some hotels have UK sockets but not all.