My husband and I were travelling to Switzerland and chose to use Matrix International Sim card to stay connected back home. Also we were hell bent cz a very close friend had good things to say abt it. And while we used Matrix with no restrictions, we were worried that we would be bombed with a crazy bill all charged in Francs!! Turned out when we actually got the bill we did not pay more than 6k for those days. So i guess what they say abt being economical is really true!! A special thanks to Rachna also for introducing us to Matrix