Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Quality Self Leveling Laser

I debated buying other levels at the price but reading the reviews I sensed this was the one to go with. It's rare to see a product so highly review. This is a quality product that has paid for it's self in the short time I've owned it. I've done a kitchen cabinet installation and two flooring repair jobs. I'm very pleased I bought this product.