Here is my personal experience about Aircel network. I have used this aircel since my school days that time it was really good in service like sms pack, net pack and rate cutter. And the main important thing is that network coverage was really good I had been used that network more then 10 years.
After am moving from Erode to chennai the service was really bad and after that I was came to coimbatore during that day I cannot able to connect my data even 2G I cannot connect. So my experience on this network was really bad and unsatisfied. Think before you go for this network