I am a Reliance Jio user, I am going to share about my experience in Jio.
After completing full registration process I was used this network. At the first two weeks I got the super fast VoLTE at speed of 30 to 40 Mb/S always but after completing the second week the 4G speed started decreasing into 10 to 20 Mb/S . After completing 30 days the speed Reliance Jio 4G was decreased into 1 to 5Mb/S. That was unexpected experience ever I mentioned about the Reliance jio.