I am using Aircel mobile operator since 2014, I had faced some problem with Aircel mobile operator.
Network coverage is not good at all.
3G network is not available at all places.
Internet speed at 3G network is not as good as compared to others.
At 2G it is impossible to access internet.
These are the problem I had faced with Aircel Mobile Operator. And one more bad thing is their customer care support. In my opinion Aircel should improve more.