Ok, let's be clear about what can you expect: this...

Ok, let's be clear about what can you expect: this is an private apartment house in a unique, unusual style. If you aren't particularly interested in architecture, skip it, as you can only go around and view the exterior, front and back and the surrounding area that is similarly arranged to match the the house's design.
You can buy souvenirs in a small mall near the house or have coffee or lunch in the restaurant. The food there is ok and prices average.