i switched from vodafone to giff gaff 2 months ago..great deals i must say,i was in london on business last week,and had to make an important phone call only to find the network was unavailable,i tried and tried and ended up borrowing a mobile phone from a complete stranger in the hotel lobby,by the time i got through to the person i needed they were already on a flight to paris so i missed an important call..its no use having good deals if the network is constantly out of order..needless to say im changing back to vodafone..if im paying for a service i want a service that is reliable...