Myself and a couple of mates visited amsterdam and stayed in a triple room in the basement at the front of the hotel. The room was very clean and the single beds were comfortable. The bathroom was also very clean and reasonably spacious.
Breakfast consisted of a choice of cereals, juices, youghurt, cheeses, meats, fruits, croissants and rolls. On the second day they even had chocolate brownies!
The hotel is located on tramline 2 near vondel park and there is a tramstop outside the entrance. It is about a 5 minute walk from the Van Gogh Musuem. It was therefore not in the centre so fairly quiet at night.