This is a great buy! I have a two story house with my office upstairs, and my xbox downstairs on the opposite side of the house. My wireless signal was only at half it's capacity down stairs when using my xbox, which if your gamer like me, that is very frustrating. I had tried wireless boosters, running a 200 ft ethernet cable down the stairs, all helped only a little. Then I ran across the Rocketfish powerline networking kit and thought I would try it out. It was around $85 if I remember correctly, but I asked if it didn't work if I could return it and was told yes, so it was a win win scenerio. It works great, now I can use the ethernet cable for my xbox, samsung HDTV, and my Directtv DVR, it is great. I was about to give up, and was looking at hundreds of dollars for hard wiring in the walls, this awesome product saved me $ in the long run. I only wish I had found it sooner. Remember, you can take it back if it doesn't work! (at least that is what my local Best Buy said)