I would totally recommend this place to anyone who's looking for a clean, confortable and price-friendly place to stay in Amsterdam. Even though I didn't get a chance to meet Matthijs, I met Francina and she was very friendly and helpful, she recommended some places to visit. Also the location is perfect! 10 min walk from the central station, and very close to strategic points of the city. Last but not least, the breakfast is AMAZING! they have a partnership with a local bakery, and it's fresh and delicious.
Overall, I was very happy and I would totally recommend you staying at this place.