I am using relince jio from last 1 months.its data speed is unbelievable but also call connecting time is poor. Not able to call anyone, Data network is very poor. you can not use it inside the home. y.also we can use relince jio service without any charges till 31 march 2017.relince jio sim is easy available in nearest shop.Hope jio solve this issue very soon and we see better connectivity very soon.