Roy...
I just got it the day after Christmas. The installer was supposed to show between 8 and 10 am. Guess what!!! At 11:00 I called and they hadn't assigned my install to an installer yet. I was
HOT!!!. At 12:00 my Wife called. She stayed cool, and was able to speak to a supervisor, who got the next available installer to take our install, but it still was after 2:00 before he made it. But he did call us and let us know when he would be here.
It took him until 7:00 to get it done.....with me helping him pull wire.
Later we discovered the installer deleted

my wife's telephone line during the install,
(NOT COOL!!!!) but they send someone out bright and early Saturday morning and restored it.
The telephone guy said that the Uverse guys don't know beans about the landline service, so be sure that everything works before he leaves.
The TV is great. We got the 300 with the HD add on. I am getting my TV via an HDMI hookup because I already had the HDMI cable hooked to a TV input, and the back of my TV is not easy to get to. The HDMI causes an error message when the U-verse starts, but it disappears right away and everything works fine. The installers don't even carry HDMI cables because the Motorola receivers give these messages even though they are equipped with HDMI ports. The installer said I might get some component cables to replace the HDMI if the HDMI causes problems. (Which it hasn't yet) He would have given me a set but there were none on his truck. ???? I found some component cables in my mass of old TV stuff and hooked them up myself the next day. The HDMI seems to produce a
slightly better picture than the component cables.
Everything worked great with the internet on my Wife's PC. IE didn't have any problem with the U-verse modem.
Safari, on my Mac doesn't like the modem at all!. It was extremely slow loading on any emails or websites with lots of graphics. Fast on text, but slow on graphics. Firefox was much better. Camino best.
This must be a known bug with U-verse that no one is fixing, because a Google search on the subject will produce a lot of hits!!!
I have Safari working pretty slick now by trying a trick I found in a U-verse forum by switching my Mac to Open DNS address servers from the DNS set in the U-verse modem. For now Safari seems to be working at warp speed. (I really found that I prefer Safari to Firefox). I do seem to get a rare advertisement pop-up, that may come from the Open DNS. But it isn't obtrusive so far. I'm not sure at this point that that's where they are coming from.
Other than the Safari issue...I am very happy with the U-verse so far!
If I can help you with my experience so far, let me know.