I am using jio sim since 1 year and I feel that it is giving a good service to its customers. Jio has changed the mindset of other cellular network provider by its amazing offers and loot. If we talk about the network it gives a good network speed but few times it becomes slow and I think it happens in all network providers. The interface of my jio app is user friendly and easy to use for me. But if we talk about the billing and payment process I have not used it, but in a offer I have received extra 5 GB data bonus.