Hidden away in this small 4 room museum are works by Picaso and Rembrant which are displayed modestly along with many more cat-related paintings and art-objects, if it wasn't for a small perspex plate beside them, I could have easily missed their origin. Obviously, there are quite a few house cats about as well :)
While the museum was great fun, 6 EUR for a 15-20 min visit is a bit of a steep price to my taste. If you can enter for free using a city/museum card (and love cats) this is a must. Otherwise, take the price under consideration.