This is a pleasant room, a really good size, very nice bathroom and having a fridge + coffee machine is great. The location is really convenient, 10 mins walk to Museumplein (not 5 mins) or Vondel park, yet the area is not too busy so quite laid back, with local shops nearby. It made a great base for our trip.
David helped out promptly with an issue, and was really flexible around checking in. We saw him only once, he doesn't live in the building. This is a room + en-suite in a shared accommodation set-up where the other long-term residents have access to a next-door kitchen and living room that you don't. This caused no problems, we saw others only very briefly over 5 days, but be aware you are a resident in the space of other people who are not the owners, so don't expect the 'guest in someone else's house' experience.