I am also using jio sim operator this sim is an excelent sim in this sim I have 6 months of free internet and calling, sms for lifetime and the network of the sim is superb and to fastest than other networks.the speed of jio internet is minimum 10 mbps and maximum is 40 mbps so I love this sim. Customer care exicutues are very freindly with all who call them and they will solve the problems in only half an hour and they support to all customers and