I was in Amsterdam for a conference at RAI. Niels's place is simply super well located, just 5 minutes walk from the conference entrance. It's also well located for discovering Amsterdam as there are tram/metro lines just a couple minutes distance. There is also a 25m swimming pool at 8 minutes walk (just go in the morning! super packed in the evening). The room at Niels's place is very cosy and quiet, with plenty of utensils: coffee, boiler, speaker, etc. With good weather it must be simply great as the terrace is just beside. Instructions on how to go around and highlights of the neighborhood are also clear. I do not hesitate to recommend Niels's airbnb!