This apartment is for people who like amazing views, space when on holiday, convenience.
We stayed with a child which neither was a problem when booking nor when there as long as the child (or you) are fine not having a door that seperates living/sleeping area (ours doesn't mind).
Public transport is all around the building which makes it easy to get anywhere from the beach a few miles away to Amsterdam (just under an hour by train).
Communication was absolutely excellent from confirmation within a few minutes to the hiccups of me (having booked the place in my name) arriving a few hours later as I had missed my train to the door between the entrance hall and flat that fell off its hinges in the middle of the night while we were sleeping (and was put aside quickly to be fixed after our departure) and our departure in the early morning hours when no one was at reception yet but the key was put in the letter box and the nice contact via phone afterwards to let them know.

Den Haag/The Hague itself seems very relaxed and enjoyable (once you got used to the sheer amount of bikes on the roads) and less touristy which was good for us to wind down and get away from a hectic everyday life.
We went to Amsterdam one day which in comparison almost seems to touristy.
I am sure you can also go to the countryside (which is very beautiful) and other places as Holland itself seems very well connected and a lot of interesting destinations within easy reach.

I can absolutely recommend this place for people who want to relax, have a good vantage point from where to go and see other places and everyone just wanting a quick getaway from a hectic life for a few days.