I have no regrets of buying Tata Sky. It is one of the best DTH operators and cable providers in the TV industry right now.
Only problem I have with Tata Sky is that when it rains it is absolutely useless. I have seen other DTH providers work better in rains. You are basically left with no TV when it rains. Even a slight drizzle is enough to make fhe network dissappear.
I think they should work on this aspect. Work on buidling a stronger and better netwok. Get good Antennas and do away with this problem.