Aircel is one of the biggest cellular network operator in India. But this network have some good and bad things.
The network coverage of this operator is worst in my personal experience. Some time network is shut down in my phone. Aircel is unavailable in my area so didn't recommend anyone for this network.
The customer service of this operator is quite good because they provide 24/7 service. I use this network for 6 months because I didn't satisfied with their service.
This cellular network didn't charge high price in recharge and promo service.
For post paid user this cellular company charge high price compare to other networks.