Penthouse is nice, with a beautiful wooden structure and a wonderful view from the terrace and awesome sunsets. I was at the house for every sunset I spent in the city and I cannot imagine a better place for being at that hour. Still, as everything was alright within the house, it's not that great to reach it. Rather far from the center in a city where public transportation is quite expensive, and having the most steep and straight up flight of steps I've ever seen.
I was also a bit disappointed because I rent it thinking it was an entire appartment for myself, but the bathroom was not at the very same flat and not only you ought to climb down the stairs but you have to cross through common areas which is uneasy when you just go out nearly undressed from the shower.
Anyway Nathalie and Arjen did his best for making things easy for me and they were quite attentive.