I used to like Airtel a lot some time back because of the network availability in the most of the remotest places. The prices were also highly competitive but nowadays I feel airtel is just trying to take the advantage of the brand value that has been built over years .
The pricing has been tremendously increased when compared to other networks .There are networks available which provide network at par to airtel and still charge lesser than airtel .
So for new networks I recommend not to go for airtel.