Jio recently became jio prime which is not free but if you compare it with other networks it will provide you approximately 28 4g and rest at low speed and unlimited local/STD calls at 303 INR only. The networks provided are average. In Iphones made before december 2016 speed will be pretty slow but if you are an android user you can even get upto 30 mbps. You can use 1 gb 4g data per day and when you finishes that data you will be given low speed. But for a normal user 1 gb is pretty sufficient data. And if you don’t want internet and only interested in unlimited calls than its also a good news for you that only in 149 you get unlimited calls and so many other offers. Customer care service provided is slow because it takes time to connect to the customer care executive but they are recruiting more peoples so that problem will be also solved soon.