I've been using a satellite AT Financial feed for a year now, with VERY little reliability problems. I would say that the feed goes down for a few minutes each couple of weeks. Almost always, the problem is related to the satellite connection (thunderstorms, satellite uplink problems, etc.). For an extra $1000 per month, I can upgrade to a T1 circuit feed, and I would expect my few current problems would go away.
Anyone with AT Financial feed that is having their feed 'go down daily' should carefully investigate for the root of their problem. I suspect that the recurrning problems they are having are NOT related to their data feed, but perhaps related to their networks, data bridges, or something else. Just my two cents from someone that has no affililiate to AT Financial except as a customer for the past year.
Best of luck,
-Eric