I am using airtel network from 6 years.I like airtel very much for their good services. It is the best mobile network in india. Almost all people use airtel network . It provides better services than other mobile operators. But airtel is more expensive than the others. So it is not good for those people who wants cheap ( less cost) services. It provides 2G, 3G , & 4G netwoks in india. Now a days it provides some cheap plans to the customers. So I advice all of you to use minimum one operator as airtel and get their best services in future. All the best.