I'm using idea from 2 years. And I hardly have find any network issues with it. Idea's network is really very good. Anywhere, idea is ready with up its good network services.
Although, it is little bit costly. But the services provided by idea are able to hide this small limitation. Its other services are also good like internet facility.
I always prefer to use idea's internet service because of its speed and connectivity.
All I can say is Awesome IDEA Sir Ji.
