Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Quiet fan, a snap to install

I've added this to my PC.Specifically, it's the 2d fan (pusher) on my Cooler Master Hyper 212 Plus CPU cooler.It was very easy to install, and would've been just as easy in any spot (top exhaust, back exhaust, front drive-bay intake).It's quiet, and it has good airflow. It's improved the performance of the CPU cooler by several degrees Celsius over just the stock puller fan alone.