Summary: Setup out of the box went smoothly and quickly. Both the component and HDMI connections worked flawlessly. It does not seem to be a resource hog. I have found that if you turn it off it is a little slow to restart. My solution is to just leave it on all the time. I have only used the wired ethernet connection and have no experience with the DMA2100's wireless networking.
Pros: the set-up was relatively smooth. the on-screen display was very easy to navigate.
Cons: to obtain an HDTV signal, the unit had to be within 6 feet of the WRT30N router and for non-HDTV... within 15 feet of the router. video will freeze frequently. but audio still play. but once video freezes... it stays that way until unplugged.
Summary: The actual extender seems to work perfectly fine. The problem is that I can still not send video to it because of a Microsoft problem. Media Center will not recognize my TV Tuner card, this is caused by the fact that a service called "MediaCenterReceiver" will not stay running, it keeps stopping, and I don't know why. From searching the web, many people are having this problem. I have read several fixes, and tried them but they did not work!!