Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Surge protector

The problems that I had before its use included glitches from power spikes. The product now cleaned up the power to my equipment and I no longer have any power related problems. It is kind of clunky, though, as the thing sticks out so far, but it is held fast using the center screw. I recommend, now, going with the corded model quad; much better.