Was our only option till the phone company got their high speed access out here. Not too bad, have to watch bandwidth you use though. No hardcore youtube stuff ( a little is fine) and completely forget about huge downloads (my husband likes to update our computers overnight sometimes). And no Pandora or Last.fm. Once you use your allowed bandwidth they slow you down horribly. Most people don't have that problem, but my husband with his line of work did. Also, you do lose it during some thunderstorms and some snow storms. We just learned to live without it during those times. Generally cloudiness itself was not an issue. It was more the precip that was an issue.
One good thing that we did after we had it for a long time was call the company and tell them that we have an offer for faster speeds for a cheaper price. They would lower our payments for X amount of time. You have to do this about every six months, and it only works if you've been a loyal customer for a while. You also have to sound convincing when you tell them that. They'll ask you to name the price and the specs on the other "deal." You have to know a little bit about it to make it sound plausible.
We switched so that my husband can work from home when he needs to. He has to connect to the University servers via a secure connection, and that just wasn't possible with HughesNet, it was too "laggy" as he says. Now we're waiting for the phone company to get their cable hooked up out here. It's up to the house and hooked up in the house, they just have a few more things to get it hooked up I guess. We're on their wireless (I think?) access right now. We have an antennae sticking out the side of our house to draw from the tower that's just a few miles away.
Oh, and there's a lag that you'll probably only notice if you work with other high speed internet. It has something to do with the way it uploads and downloads its information. My husband can explain it all. I just nod and agree and have a hazy idea as to how it works.