I was a Aircel user 2-3 years ago but by the time their services have drastically went from bad to worst.
Their call charges used to be trend setters but now they have hiked call charges while their 2g/3g used to be great but now I can hardly send a whatsapp message from their sim, and on top of that if you happen to dial * 123# they will deduct your balance, coming from a Airtel sim where you could check your balance with * 123# I many times dialed that number in ignorance costing me money many times.