Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fairly decent

I purchased this to combat my daschund's potty training issues. it works fairly well for dog pee (on the stronger of the two setttings) although i still have to use nature's miracle on the spot afterward. it can leave a clean ring of whiter carpet where it is used -- so a word of wisdom is to use less cleaner and more water in the tank. the device is one star less than perfect b/c it is kind of loud and the tanks are fairly small. also, once it stops, it beeps to be lifted off the damp spot -- and doesn't stop until you press a button. literally, it will beep for hours unless you press a button or unplug it. overall, it does what it says and anything that makes cleaning up after my dog easier is most welcome.