The stay at Casper's apartment was great! I like the area close to the canal which is why I chose this apartment. A friend and I shared the space, which is very nicely furnished and decorated. The kitchen is very well equipped and you find everything you need. Casper was very helpful and responsive, before and during our stay. The one little shortcoming in the apartment is that there is no door between the kitchen/living room and the bedroom. Otherwise everything is great.
The area is perfect as well, close to the metro, to supermarkets, and to tons of bars and restaurants.
I would certainly recommend a stay in this apartment!