Litter can't escape!
One of my cats kicks a lot, I wanted a top entry box for ages, but had to wait over two months for this to come back into stock. Could have bought one back in December, bu at the time my kittens weren't big enough to use. Got it about a month ago and kittens caught on straight away, and luckily mummy cat copied them. Less than half the price of the next cheapest top entry litter box on Zooplus and it's bigger. I've not had issues with smells, but my lot are pretty good at burying their business.