I am using this network from last two years.
when coming to call charges and planes Aircel providing good topup offers when you recharge with 100 you will get more than 100. providing good reduced call charges.
From last three months they activated local calls 10ps/min offer.
Disadvantages
when you speak with some one you will get more voice disturbance some time network drops when you speak with some one.Finally I suggest you to don’t go with this network if you give very important to calls.