I have been using Aircel from 2010. It is the only network that I can afford then because rest are quite costly to bear other network operators sim card. since then up-to the arrival of 4G in India it worked better but after that it never upgraded its network I do not know the reason why. But as a user I found its network weaker in village areas where I have to walk for finding a network. that was most awkward feeling or me.
When comes to its bearing cost its tolerable that means not too expensive and will not empty your pocket.
the customer service is at your hand means we can own resolve our issues by dialing some codes such as for any type of deduction from account, do not disturb service. also 198 works quite good and we do not have to wait too much.
but when I comes to my basic need the internet its not good or we can say below average. The connection is so slow that it show buffering even when I play the video on 360P. When comes to downloading it take 8 to 10 minute to download a 5MB mp3. So in comparision with 4G its too far.