We were in 6 adults. The apartment is very well located and very spacious with big rooms, with one of the beds being mounted in the living room.
It has a difficult stair to climb with suitcases, but this is common in Amsterdam and was not that problematic.
The kitchen is well equipped and ready for use.
There was a television but no signal and no remote control, that is, no possibility of use.
The heating of the apartment worked well. Great shower, with hydro jets and sauna. The bathroom is large and spacious with a washing machine (but we did not use it).
Communication with Katja was great and always willing. We spent great days in Amsterdam.