We checked in on 9th April and it was late at night around 7pm.
The whole room got around 10 plugs in the room but only 1 was working, as a result, me and my mom stayed in a very dark room and charge with the extension cable offered by the reception (the lamp, coffee machine and our cellphone were all plugged with that extension cable). Furthermore, all kitchen facilities were not working (fridge was not working either).
In any case, we were being told that no other room was available, and we stayed in a very dark and inconvenient room for a night.
I would imagine a price of Euro 160+ with a better service and facility in Hague.