I actually posted this at the Miami thread about D*:
I love it. The only downside was like on Saturday for example when the rain really came down really really hard I didn't have TV for 5 minutes. I already had an installer to realign the dish. However, the DVR is not affected since it's off the hard drive obviously.
The other thing is that I need to buy a network powerline adapter so that I can run internet to the box. This is so that I can watch On Demand and connect my Wii and PS3 to the internet (I have a wireless G router that my cousin gave me but it doesn't get a signal out). If you have a wireless router already, you have to get a non-USB ethernet adapter to plug into the RJ-45 connection in the back of the box. It's not like the PS3 where it has WiFi built in already. The adapter kit is $50 plus $10 shipping.
I love it for one thing because not only the package I have gives me way more HD channels, it costs me about the same as Comcast did with way more movie channels.
The little features too like being able to program your DVR from the web or your phone, customizing the alerts for your fantasy players via NFL Ticket, huge hard drive, RF remotes, a real web site. It's such a better experience. Even at the dbstalk forums you see people that have had D* users for 10 years+.
As far as Costco's deal vs D*, you have to see what is available now. I think my offer ended because since it was the NFL Ticket and the season had just started it was what was available.