I have started using mobile phone when I was in first year of my college and its with me till now.Airtel hast been a good operator than any other network in my opinion because the services provided by Airtel are owesome.The network of Airtel is the strongest I have ever seen and connected to any place.In my village when there Is no operator of any of network the networks are 7 kms away from my village so any network is not able to connect there. But the Airtel Sim I have catches the range and I get network on my cell phone.So I reckon to use Airtel network.