Airtel network was the best till 6 months ago but every passing it’s becoming one of the poorest service providers.
The main disappointment with the network is that, on every occasion/festival, the network will get down. also there are a lot of call lags these days. I was the biggest fan of airtel and using it from approx 6 years or so. But sorry to say, now due to their bad network thinking of other options.