I am using Vodafone. I am not happy with vodafone because there is network in my home I already complaint in customer care bit still did not response.
I called many time to Vodafone customer care . they are not active and they did not listen customer problems.
I was using airtel service. I never face any problem regarding network. they are the best. I am not going to port my number to airtel because I am not happy with Vodafone services