I have been a reliance jio customer for the past one year and there has been always a problem in attaining network coverage. In the outskirts of the main city it is a very tough to attained network. And in Jio everything is proceed through mobile data network, so without high quality network nothing can be done.
Though Jio is offering exiciting cheap packs, if there is no productive service, there is no value. Some incident happened, a very low quality voice call with cracky voice of the person talking to, even when there is a high network coverage.