Airtel is my first sim I used when I brought my first mobile and now currently I used . Network coverage is awesome I rate 4 for network coverage and I use several sims but this is very fast and its customer services is also pretty good they solve and file complaint immediately there is no server problems in it and others operator have server problem everytime but this is vry wide strong and smooth network but this time I have only one issue because its charges and billing is very high they cannot give offer like jio and not comparison to jio so in the charges section it is very expensive I cant understand after high competition of jio, airtel cant change its prize and and currently I used jio as primary when my calls not connected then I used airtel as secondary sim so I rate corrtely