Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Simple and Effective

I bought this product when my wife and I moved into a new apartment with a small water heater (3 feet tall, 2 feet wide) and high water pressure, which is the perfect combination for having hot water run out in the shower after 5 minutes! I installed this item in about 1 minute, and it has been amazing! Our hot water now last 25 minutes, and the great thing is that you can still adjust the water pressure as you wish, so if you want a super strong blast of water to wash off after lathering up, just turn it to fully open. For $10, you can't beat it!