I love airtel I have been using it since last 10 years. Be it speed or network coverage. Everything is best about this network. From last year I had converted to postpaid though its somewhat costly but the benefits given are amazing.i got free amazon prime subscription free netflix subscription and many more. And whenever I complain they make sure my complaints are lookded into.personally I would say every one to use airtel. All the tarrifs are cheap.i dont think any network even come closer to airtel