If you upgrade to HD, Dish will come out and swap the superdish for a dish 1000. I had a dish 1000 installed last month right before the locals moved. The dish is slightly wider than a dish 500 and much smaller than a superdish. In Fairhope, I get signal strength of about 80% on the 129 sat, while the 110 and 119 sats get over 100% signal strength. Pepper is right, you could get much better signal strength for HD if you put up a 2nd dish 500 pointed at the 61.5 sat. My Installer was not interested in doing that. He said 80% was great singal strength for the 129 sat??
If you do not plan to upgrade to HD, the superdish will work just fine.