The smell of cat's pee is overwhelming and takes some getting used to, even for a seasoned cat-owner like myself. Once your nose is accustomed to it, this is very much you average Parisian café - except for the cats who wander around freely on the premises, sleeping on benches and armchairs, playing and eating from your plate if you let them. (Provided you are having a dish they are interested in. They prefer meat to dessert, I noticed.)
It was cozy enough, especially if you don't have a cat at home, I suppose.
A piece of advice : Eat quickly. That will avoid cat hair on your plate.