This is such a great item, it's top quality - not some crappy knock-off. The wall/sides fit perfectly, and clip off and on easily. The little step is cute and is also good quality, the holes on the step let small bits of litter fall in when my cat steps out.
My cat transitioned to it in a couple of days with no issues - she seems to like the bigger size.
I had a question about the item after I had purchased it, Nick got back to me super quick to answer, and was very helpful and nice.
I'm very happy with the purchase!