I have been using jio since 3month. Network is not available everywhere. It is worth for free. But as jio prime needs payments then service is also needed. Mostly network. Jio is good enough for internet usage but then you will be needing another sim for talking.
Paying 99 to be a prime member without knowing about the connectivity of jio is putting your 99 at risk.
After 99 you will pay around 303 every month
And that too only for internet. You need to decide is 300 worth your net usage.
You may take a risk of 99 it’s not much but do u get connectivity everywhere are you able to make calls properly.
As I m not.