First of all nowdays aircel gives the most low price packages.
rate cutter, data pack, sms pack all ate very low compare to others network operators .
its good and affordable for students.
But the major draw backs is its network coverage.network coverage is too bad .i am not getting good signal when I am inside my home or travelling with my bike.but on the other side, I am using a dual sim phone, when I use another operator it works fine.
Internet speed in 3g also not impressive.when aircel launch 3g they are giving very high speed.now they reduce the speed .
And balance deduction is a huge bad habbit of aircel.
If you have to think your pocket then use aircel
.thats y I am using it