The apartment is very well located : close to the canals and nice shopping streets, 15 mn from the MuseumKwartier, 20 mn from the Dam Square. There is a tram in the street if needed. We were not bothered by the noise of the street. The apartment is well organized and well decorated.
On the bad side, the mattresses are really really (too) soft. The cleaning wasn't as expected.
The apartment was on the 1st floor and that is a good thing because as all stairs in Amsterdam, they were very very steep.
Expect the host to be 'suspicious' : they probably had bad experiences with groups of young people, so there is a smoke detector, a noise detector (no parties or loud music allowed) and they ask you to leave you ID in a safe in the apartment (I didn't but as we were a family of 4, they didn't argue).
Dries answers any questions or requests quickly and all in all, it was globally a good experience.