Good infrastructure, clean rooms, very good service, poor building substance.
We liked the location of the appartement with the opportunity to park the car for free. The owners advice to take the tram 7 to get to the city center was very helpful. The appartement is clean and has everything you need. The breakfast was good.
Two things we didn't like about the appartement were the steep stairs and that the appartement is poorly soundproofed. So if you come back to the appartement late in the night (we did because we only have been in Amsterdam for 1,5 days) you will have to climb up the stairs (which are more like a ladder) and propably wake up everyone else in the house. But that's something the owners can not do anything about it. I think, they made the best of the space they had.