I have been using Airtel 4G and it is reasonably good. If they reduce their tariff matching JIO I think they can file the market further. Sometime within the same place get 3G and sometime I do not get continuous 4G. But I never had problems so far. They have trasparent billing etc.
During roamings, my calls and network get good coverage in most of the places.
They can offer home 4G WiFi router
