I have been using Videocon d2h since past 3 years. Signal quality is really good, I faced signal problem only twice in this whole period. It provides maximum number of HD channels than other service providers in the market. The tariff plans are affordable.
The only problem I face at my office is of having a set top box keeps shutting down after certain period, it is really irritating. Customer service is fast and reliable. Most important thing is that they dont bug you with unnecessary offers. There are always new movies on d2h on demand channels, I seriously think it is a must have service.