I have been using MTS MBLAZE Postpaid data card from past few months. First of all of you travel a lot then it is good for you and it offers plan cheaper than tata photon wifi . But this does not provide all india free roaming like tata phoron+ . The speed that comes is usually upto 3mbps. If you want to get best out of it use it early in the morning as I have managed to get above 4mbps . Sometimes I found some technical error when I want to check my data balance and thus it is not something you can rely with closed eyes like tata photon wifi. If you passed your FUP it takes hours to get speed booster pack activated so please buy it early .
The speed after FUP is 32kbps which is pathetic
In the nuyshell:
If you travel a lot in local area, don’t want to shell out more money. Go for it.
If you usually go out of town( common in business) don’t buy as it doea not offer free roaming.