I wish I had seen these reviews before buying dongle from airtel. I was cheated by one of their dealers by promising me moon but when it came to actual delivery it is worst experience I have gone through
speed in delhi or noida is no more than 2 to 3 mbps
speed outside delhi is less than 20 -50 kbps. My mobile works faster
Most of the times you will have no connectivity while roaming outside delhi
My experience was no connectivity in Haryana, UP west, Punjab etc.
If you complain they will tell that within 4 days they will come back to you but they never will
if you call up again they will say there is no such complaint lodged
if I asked them to disconnect; no response to my mails but they keep sending bills
never buy Airtel 3G