I'm using Jio sim on phone for 3 weeks now. Inside coverage I get maximum 2 bars and most often 1 bars. So coverage inside is not that good. Speed also barely goes to 6-7 mbps tho my location is in the excellent coverage area according to their app. Phone calls sometimes take 2-3 attempts to get connected. As a user I became bearish on RIL soon after using it for some time. I was expecting the extension at December end but not this early. Anyway I've bought puts. I think it is going to be the another flop adventure of RIL.
I hope I'm briefly right (till my puts become highly profitable) and wrong in the long term so that we each can enjoy high speed cheap internet.