Stayed here with a friend, and read the reviews so knew what to expect. The hotel itself is about 15 mins walk from Centraal Station (which gets you everywhere). They have a shuttle bus which leaves every 30mins or so but you HAVE TO pre-book it a day in advance. Other option is to get the tram across the road from the hotel (you can buy their travelcard / tickets in the hotel gift shop).
Rooms were spacious, had a great view, and the staff were very professional. This is probably more a business hotel in a great location than a touristy type of hotel, but nonetheless very good room.
Friend I went with stayed in a 4* hotel in Dam Square last time and he said this hotel beats the socks off the other hotel he stayed in.
If you can live with the 15 min (mid-paced walker), distance to the station or willing to get a shuttle to station to get anywhere, this is a perfect hotel. I'd most likely stay here again.
Also used the gym too which was modern and compact.