I am using this Jio sim from last 5 months and as per my experience I would not prefer this Jio to use.
There are some are where Jio network never work, sometime you can not call anybody in 1st time, you have to call several times and it takes time to connect with someone, in short network coverage is not good.
Because of this if you want to call any body, most of time you will not able to connect call in one short.