As we all know airtel net charges are bit more expensive then the other networks.but yet its better because you can find it any were, it gives more speed compare with the other networks, whether you cell phone is not in airtel 4g network but u can still use 3g speed of airtel by recharging pack of 3G/4G. It means when you are in 4G network you will get 4G speed and if not then 3G, pack will not make any difference.I have used many network like docomo, relince, bsnl, idea but this is the best network I ever had. and you can get airtel service also better and yet fast.