We stayed here for 2 nights as were attending the mtv awards. The standard of the rooms was very good. Clean and modern with a large open plan shower complete with toiletries. We stayed on the 1st floor, our room over looked the breakfast area which was very busy.
Only 1 small negative with the room was that it was only half cleaned. There were still dirty cups floor towel and the coffee hadnt been replenished.
There was a good selection of both hot and continental breakfast, though the coffee came via a vending machine and wasnt very nice. it had also run out of milk... so no latte for me!
The hotel is in the arena area very close to the station, ziggo dome and concert hall. It cost us 4.80 euro return into central amsterdam. There are bars and food halls about.
All in all though very reasonably priced I definitely recommend a stay.