Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This was a lifesaver

I bought a $75 15 meter (50 ft) HDMI cable and ran it in-wall in my basement. When I tried to connect my XBOX 360 to my LCD television I got no signal reported on the TV. I thought my HDMI cable was damaged while I snaked it around the room and that I would have to just clip off the ends. From some research I found out that most HDMI devices like blue ray players and the XBOX 360 only support HDMI cables of about 2-5 meters in length. I decided to give this device a shot but was skeptical since it has no external power source and is the cheapest HDMI booster product around. But with this booster properly connected between the XBOX 360 with a short HDMI and the 15 meter HDMI cable to the TV, it works perfectly! Now I don't have to hear the loud DVD drive and fan noises of the XBOX 360 while playing Fallout 3.