I have used MTS dongle in my PC. I have purchased a plan of 14Mbps @ Rs 999 40GB unlimited. This is the one of the biggest mistakes I have done in my life.
I connected this dongle in my PC and it easily connected. I saw the network icon, I have Internet access. I searched the web, it was good. Then I visited Ookla.com to test my Internet speed and what I got 2Mbps, that was a big shock. I have paid for 14Mbps, I at least must got 10Mbps. I have purchased the dongle for Rs1000 and also for plan of Rs 1000. I have wasted Rs2000 in a day. So, I have to use it. I have use it for 1 year and the speed of downloading files that I have observed is maximum 400Kbps and this is horrible. In data pack it was unlimited after using all 40GB but after the 40GB data get used up, I even unable to surf the web.
At the end, I have to say that this was the worst Internet service I have ever purchased.