Absolutely fantastic! I have 4 cats, all litter trained but when my daughter visited with her dog( a just want to be friends Kelpie😀) the cats were a bit weary to start with. Which meant they stayed in my room area, and had an accident. I could not believe how this works. You’ve done the research and found a way to take the smell away! It’s amazing! I’ll be sticking with Petlab from now on! And so happy to support a small Australian business that deliver what they say they will. Follow instructions and you’ll be as happy as I am. 😀Thankyou soooo much ❤️ Melissa