When I bought the jio sim for the first time, I was amazed about the speed of this network.after a few months it becomes a problem while watching youtube videos it begins to buffer and it become worse nowadays. after the increase in number of customers overall speed was become bad like a 2g network in internet.
Mainly the call connecting problem is disguisting.on the initial time it may takes more than 10 to 15 attemps to connect a call.but after a 6 months time it becomes better.the prompt for call was reduced a lot. Now it is better.