My brother use idea sim card. We live in rural areas.He has 3g sim card, but 2g netwrok is difficult to complete. Sometime on phone call it is interupted. In city there is no network problem. Idea company launches 4g but 3g network is not complete in rural areas. The internet charges are high as airtel. 3g internet is good in city not in village. In room the cell networks is approx 2-3 not full, until he goes on terrace.