I can only recommend The Hague and Martin's place. He is a very accommodating host and will happily give you advice where to go, what to see, and where to eat.
The flat is located in a lovely and central area with a lot of nice restaurants, bars, and little shops. From there, you can walk to most of the sights. The only place you might want to go to by tram or bike is the beach.
Other than that is the flat equipped with everything you need, it's clean and just as described.