Aircel is one of my fav network for free net offers . that is the reason why I brought aircel sim. When I brought the sim they gave me daily morning six to nine 3g net bal and I am happy for it. but after the offer is over the network seems to slow down. it became very poor when I went to my village near guntur city. this is best useful for those who live in cities and for those who roam all over india this is not a suitable network. they have to improve the network a lot. but the customer service is really good and happy with that.