The apartment was lovely - small, as advertised, but very pretty and modern. Could easily be a very zen, upscale hotel room. We did not end up using any of the supplies, but everything we could have needed was provided, and Hans and his wife were very helpful with everything over the phone, though we never had the pleasure of meeting them face-to-face.
Just a word of caution, the neighborhood that the apartment is in is very clean and safe, but not walking distance to attractions in the city - about an hour by bus. This is absolutely no fault of Hans's, as he was entirely open and forthcoming about the location. I only suggest that if you don't have a car, you buy a 24-hour public transport pass, which gives you unlimited access to the bus and the metro from the time it is activated.
All in all, we would most certainly consider staying here again, and hope that Hans and Maria found us as pleasant as guests as we found them as hosts.