My parents stayed at the apartment, and enjoyed it very much. It feels more like an apartment-hotel than an apartment. The view is breathtaking, and you can't get bored of it, it's really beautiful. The location is very good to get to places, being a few steps away from Holland Spoor train station, and a short walk to the city center. The neighborhood, however, is not the best, and I wouldn't recommend walking alone at night (although some may think differently). All in all it was a very good stay, definitely for this price (!). Elwin was very attentive, answering all our questions, and making sure everything is working fine. I'd definitely recommend this place even just for the experience of living on the 30th floor...
Thank you Elwin!