I m uaing Jio services for long and still believe it should be kept as second temporary number due to its etwork range. The network in my phone goes away any time during the day and I am forced to restart the phone several times, it works only on LTE mode. The customer service is not easily accessible througj IVR and you have to resolve problems on your own. The charges are not the cheapest one any more as separate recharges are required for non jio calls. Overall, you get real 4g network only but not the best network coverage and srvice.