When traveling to a foreign country–the personality of the people that you stay with is very important. I did not meet Malou, though she is listed as the host. Instead, Frits checked me into the room. He was relatively rude and told me to "stay away" from certain parts of the city because they are "just for locals" and they would "close the door on me if I tried to eat or visit them".
I found none of that to be true. I enjoyed Amsterdam and would visit again while staying at a different place. Apartment is in a basement with no natural light and no cooking surface. Visit Amsterdam, stay somewhere else.