I was really not a fan of reliance jio throughout all these days. I hated it because of its weak network coverage . But after the installation of some towers the situation has become drastically improved. Now I enjoy unmatched Internet speed and excellent voice quality. I have no complaint about its network at least as of now while remaining in my area. I can bet there is no other service provider in kolkata better than jio. One more thing. Jio’s policy is very simple and transparent. While recharging you get subscription to all of their apps and VAS services at free of cost. Truely free 4g network.