Instruct: Classify a given review into positive or negative sentiment.
Query: Once Miraculous, new formula no longer is.

I used to swear by this product. We had a kitten who had out-of-the-box issues, and we'd use this and the urine smell would disappear.Well, the last bottle I bought was extremely unimpressive! I did some digging online and discovered that in 2003, Nature's Miracle decided to end their relationship with the company who created the enzyme mixture.I guess they figured that they had so much word of mouth about how wonderful their product was that they could just sell us the name and not the actual Miracle!So: IT used to work. Old formula would have been a 5-star review, it doesn't do nearly as well anymore. The creators of the enzymes say they're selling the original formula under the name Petastic, and I'm going to check them out.