We've decided to end the experiment, box everything up and send it back. It was not a significant difference over our existing service. In fact, the difference was ... zero. I still had to figure a long-term home for the dish thing, bury the cable, blah, blah, blah.
And then, yesterday, trying to get the grass cut before the rain sets in for the rest of the week ... you guess it -- I cut the cable with the mower. Settled! Back it goes. We're already back up on our existing provider (never turned it off).
It was pretty easy, although I had some trouble trying to figure out some non-standard 3rd party stuff (our printer, the NAS, etc). I think people who just stream a lot (movies, games, etc.) and do a lot of stuff on line, probably see more of an improvement. We are pretty WiFi/local network heavy here. So, the PITA factor tipped the scales back toward our existing provider.
Case closed.