Hi,
I opted for the airtel 4G broadband service 6 months back since then I am facing lot of issues related to connectivity and speed. The connection drops every 10 mins and if you are connected to VPN you are gone. I am not able to work properly because of this.
When connected, the speed I am getting is not more then 2 mbps. I am staying in the heart of the city Bangalore and still signal problem is there.
So, please never thing of purchasing this connection if you want peace of mind. I tried with MTS which was far better compared to this.