Instruct: Classify Amazon reviews into positive or negative sentiment
Query: save your money

I purchased this product, hoping it would curb my male cat's desire to mark. His marking had intensified since the birth of my child. Marking had always been a part of life for my cat, but only occasionally. Following the birth of my baby, my male cat became an "angry middle child," marking up to 5 times a day! This product was to be my last hope for a pee free zone.I have been using this product for 3 months now, with only mediocre results. The marking has gone down to 2 times a day. But now he marks in front of the outlet where the Comfort Zone is plugged into! Based on my results, I would not recommend this product to anyone.