Idea network is a really good mobile service provided. Have been using this service since five years. No faults in their network so far. But it was little bad during the Chennai floods, As I couldn’t get any network to reach my folks back home.
But thats al right since all the towers were down so its understandable. Idea also has a lot of offers which is going on constantly which makes it very popular amongst teens. So its a must buy Sim Card if your ever going to purchase a new one.