I have been using aircel from past 2 years.
Network is very poor. I can't even find signal in my college and lift due to which I face a lot of problem.
Net connectivity is very poor and 3g plans offers 2g speed.
There technical team never call back. They say they'll call back once they are free and its been 2 months I keep calling and reminding their customer service for technical support.
So it is waste of money to be in such network.