Airtel 4G Dongle is right, and I used it for about a year.
I surfed the net using the Airtel 4G SIM, the speed was very good. Device performance was satisfactory.
You can use it at any place
Across India where ever you travel with your prepaid Airtel sim, you can use the device. it works as per the available 4G, 3G or 2G.
There is no extra cost for data in airtel across India.
This dongle works right in the villag and city, its speed is also very good
I think if you use it then you will not have any problem.