I have been using Airtel digital TV since last 6 years and I havent faced any single problem with the product or any of its services.
It is the best available in market as compared to others. The best part is that it doesnt charges anything even if we forgot or delay the recharges for some time.
I have bought 3 other set top boxes of Airtel after using the first one for my other rooms. Also HD services are best in its price.
Its a affordable and best STB available.