Great place, highly recommended. Elwin and his team of helpers are very responsive, provide you with all the details on the flat, surroundings and amenities in advance and everything is set up very professionally. The flat is so big that you wonder why they didn't put in a ping-pong table... Good location, 2 min walk from Den Haag HS station (30 mins from Schiphol, frequent service, even during the night), centre of town is a short walk away (e.g. Den Haag Centraal 20mins) and Elwin provides you with detailed info on supermarkets and a few personal favourites for breakfast, lunch and dinner (including his own place on the top floor of the tower). If you're in town for a conference or meeting, this is a very good alternative to taking a hotel.