I using airtel since 4 years ago. I fully not satisfied with airtel but I just like airtel. my parents and family member also using it. My moble is suitable for dual sim card so. I using airtel for just incoming call and sim to using for other work like outgoing, Internet etc.I not using airtel for out going because it is very costly.In my area not range for 3g so I dont use it for Internet.I like it network range, because it range arrrive all over india.it is costumer service also good. Customer service not so good. they charge very cosrtly for internet.