I was using this product for 1 year from march 2014 to march 2015 .
And my experience was poor but I had some good experience too for first 6th months speed of isp connection went till 900kbps maximum and after 6 months maximum connection speed was merely till 400kbps and connection reliabilty was very poor for first quater an after that it was very poor.
It disconnected in every 5 minutes but at that time 3g was a newcommer when I used to conect to company instead of talking with me like a formal person they talked informally which I hate.
After suffering from poor service for 1 year now I am now using airtel WiFi in which I am experiencing same problem now I am planning to use Reliance Jio of which I had received many positive reviews.