This place is GORGEOUS! I've been to Amsterdam before and this was by far the best experience due to the beauty, cleanliness and location of Carolien's apartment. Everything you could possibly need is either in her apartment or a short walk away, delicious restaurants (Tapas de Arroyo was incredibly good), grocery stores (a Marqt and a lidl just across the Amstel). If you want to get the real Amsterdam experience, you can rent a bike very close by (I recommend Ajax bikes). She even has a friend named Hamid who can pick you up from Schipol airport for a small (but DEFINITELY fair) fee. In short, this is definitely the place you want to stay in Amsterdam.