Stayed here for 4 nights during July 2011 - the height of tourist season! For this reason we were especially looking for a good price; seems the further out you go from the centre the cheaper things are.
This hotel ticked every box really - Clean, safe, comfortable, friendly and helpful staff (our first time in Amsterdam!) plus a good price considering location. Wifi was very fast, the rooms were well decorated and spacious, with a large desk, flatscreen tv with interactive features, telephone, wardrobe, kettle and fridge! Very useful if you haven't opted for the breakfast as you can buy your own food and store it in your room... there's a mini supermarket in the nearby station.
I quite enjoyed staying slightly outside the centre though; the tram ride (or bus, or train if you choose!) from Amstel Station was very pleasant and allowed us to watch everything go by. The station itself was also great for traveling to the airport and from Centraal station, where the Eurostar is, at the end of the trip. Overall, an excellent stay.