My work takes me to Shanghai a lot and every time that I went there, I picked up a local sim card. And for the last time I did that in Shanghai, it turned out to be a total disaster. Couldn’t understand their language to begin with. Getting a number was painful enough and then I had to call the customer care, even worse. After this experience, I decided to use my Vodafone number in Shanghai during my next travel. Even worse! No network! So I finally decided to experiment with Matrix International Sim Cards on a friend’s recommendation. Honestly I was ready to be disappointed again this time. And since I am not disappointed, I absolutely want to recommend matrix sim cards to ppl who have gone through what I have. Matrix offered absolutely clear network, all the communications were in English, which was a major issue that I faced otherwise. I wouldn’t say they are very very cheap, but definitely affordable if used wisely. Most likely will put it to use to a different country soon. Thanks Team!