I am using Airtel operator from last six years. I always best to provide the service and network accessibility. But I compare from other operator then I found its costly with call, sms, net pack all over service are costly. If this operator improve this type of lack of service and will provide cheaper service then other it will be the best service provider till 10 years.
My airtel service is the best ever. We can use it to recharge own mobile or another all operator including dish TV.
Although It is costly yet it is best forever.