My partner and I stayed here for two nights. The room was spacious and clean, the staff friendly and helpful, and the service was top class.
It is slightly out of the way from the main attractions but a train to Centraal Station leaves from Amstel Station frequently. Amstel is just over the road from the hotel.
Free Wifi was a bonus, and it worked throughout the hotel.
I would stay here again the next time I'm in Amsterdam.