Reliance Jio is a fastest customer grabbing operator. its giving a tough fight to other operators like airtel, idea, vodafone. beacause of only it is free of charge and free from billing offers. Its coverage of network is huge. but their is problem in service like call drop and slow speed of net sometimes it cannot afford streaming of youtube. and reliance jio requires only 4g mobile. all people does not have 4g mobile. so its restriction for people who doesn’t have 4g phone