The reception is great, but I have a few words of advice... get a receiver with an RF (radio frequency) remote so you can change the channel on the receiver from a different room. We love that if we wake up in the middle of the night, we don't have to amble downstairs to find something we want to watch.
Remember, you can only watch one channel at a time from one receiver. This creates problems for us when we want to watch HGTV and the kids want to watch cartoons. Usually, for us, it's not a big issue because we don't get to sit down until after the kids are in bed.
We also don't get the networks over our dish. The local stations won't give us a waiver for the NY and LA stations so we watch them over the air. They come in better in our bedroom than they do in the basement or first floor. We went out and bought an antenna for over the dish that has improved this significantly.
I refuse to pay the cable company an extra $10 or so for basic cable just for the networks when I'm already paying a bundle to DTV.
Keep in mind, you can get a dish that allows 2 receivers to be plugged into it so you can watch more than one station at a time. We haven't gotten to that yet because we really don't watch much TV as a family or individually for that matter.
We installed our own dish and it wasn't that difficult, but now the ads offer a free dish and installation, so that would make it even easier. There is also a special coax cable that has to run from the dish to the receiver. I think it's RG6. The regular coax that you have running between rooms in your house is fine to bring the signal to the TVs, but you do need the special coax between the dish and the receiver. We bought ours in Circuit City about 5-6 years ago.
I love the program guides that the dish offers and that I can tell what will be on later in the day by using the remote's mouse. I don't ever need a TV Guide or the TV Times that they put in the Sunday paper.