JIO is a very fast network . I spend the whole day in jio but the network isn’t to bad .Only after reaching 4gb it gets slow otherwise the jio is a very fast network .It has got good network coverage in all over India . The thing I LIKE the most in jio is giving away free data and mobile calling .And I heard now it is till 31th march 2017 . It is incredible in customer service . It doesn’t charge anything for calling . If you don’t have the Reliance Jio just go and buy the sim .And start exploring .