Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Review of Channel Master CM7777 Titan2 VHF/UHF TV Antenna Preamplifier with Power Supply (Grey)

This product works fawlessly. I have it attached in-line between my arial antenna (which is in my attic) and a coax cable which is then split several times to multiple (3) TVs (one TV on each floor of my house). Signal is boosted sufficiently to get full range of stations on all 3 TVs including the basement big screen TV which is approx 35 feet away from the antenna (... product boosts signal to travel that lengh after being split 3 times). Very satisfied.