Yeh I m using airtel 4G form past 3 months and it is geart super duper speed. People who are looking for fast , reliable speed . So they can join with Airtel 4G . Airtel 4G provide a speed for downloading is 18 mbps and uploading speed of 1.8 mbps. The airtel company provide airtel 4G at a price of airtel 3G . Due to this offer many people join with the airtel 4G. Airtel company are now building new network towers for improving airtel 4G connection . Airtel 4G is cheaper then the other telecom companies. As per my opinion you should join airtel 4G.