I never had broadband at home as I keep moving from one place to another, even within same city. Being a frequent traveler, I opted for internet device/service which can help me every time. I am using Tata Photon for last two years, so I would not say that it's bad. At least in main cities it works very well, if I exclude the earlier days when they had much higher load to handle than the capacity they had. If everything is fine, then why title says - 'TATA PHOTON is not for Travellers in INDIA'.
Somehow coverage areas are reduced by Tata in last 6 months or so. My parents live in Mandi region of Himachal Pradesh and I visit them once in two months. TATA PHOTON was working fine there for last to years, but for last three visits it never worked. Internet connectivity is so important these days that either I moved back to Chandigarh/Delhi or tried other workable options, if available. Unfortunately BSNL in Himachal is anyway not a good option to have. This time, I used Aritel 3G by making my cell-phone as hotspot for laptop. It was not that good, but at least I was able to do basic stuff.
Now I am thinking of moving only to Airtel 3G, but would need to know more about it.