I am using Reliance Jio network from last 7 months as I bought my new mobile. It's stunning experience to be part of Jio network. As I haven't any Android mobile while Jio was free but it's paid service is really trustworthy. MyJio application provides all details about current plan and we can directly recharge from there as well.
Jio provides some premium services with the cost of only 99 per annum.
JioTV whose original cost around 300 per year and it's totally free.
JioSecurity provide security to devices and it is collaborated with Nortan antivirus which is paid in real.
JioMusic gives facility to listen online music as well as download songs. This kind of service cost is around 100 rupees per month. It also provide facility to set caller tune directly and we can set manual caller tune for free.
JioCinema provides premium movies online free of cost and also it is downloadable.
JioMags is big store of magazine where we can find very big source of Magazines for free.
There are also many more such kind of application and it is totally free of cost with the use of Jio network.
It's voice quality is awesome and conference call quality is also good. I have taken this advantage several times to talk with my friends in group.
Monthly cost to use Jio Telecom service is less in comparison of other Telecom network. I have done last recharge of 399 for 84 days and I got cashback voucher of 400 and 50 rupees paytm cash.
Whenever I required customer service, I got response from Jio.
So, In my opinion and my experience, It is best mobile network to use.