Considered as one of the top service provider internationally, I opted for it. But its standard of service is in very state as compared to the international standard. The company has not been able to establish itself well here. 4G network launched in India was much later than Airtel.
The major problem used to face is the poor service of network, and low speed of internet. The network didn’t existed in many parts of the country especially the hill stations.
The charges when compared to any other network were more or the same, so I choose to change to Airtel, which has a better connectivity.