Airtel is a good ISP company no doubt. It works great but there are plenty of issue with it.
The surfing speed is pretty good. The network is also fine. The range of the network is also wide, therefore the data consumption speed is high. The worst thing of Airtel data card is, it is too expensive in comparison of other internet service provider. The charges becomes expensive contineously day to day. Recently I noticed some speed drop.
The plan is very expensive, even the recharges has a higher price tag. The customer service is also not good. It need some improvement.