The NH Amsterdam Center has a very convenient location to three types of transportation, helpful reception staff and clean modern rooms. Transportation to just about anywhere in the city is almost right at the front door of the hotel. The City Tram stops right in front of the hotel. The bus stop that can take you to and from the airport is a few steps further, and the canal cruise boats stop across from the bus stop.
I found the hotel reception staff to be very efficient, friendly and helpful. My room was very clean and modern, except for the TV. But I didn't come to Amsterdam to watch TV. I didn't opt for the breakfast plan at the hotel because it is located at Leidseplein ( Leiden Square) that has many fine restaurants within walking distance from the hotel. The hotel has free internet service and larger bandwidths available for an extra charge.
My only complaint with my stay was the concierge. He was absolutely useless. He knew nothing of city events, couldn't suggest restaurants, and barely knew that the City Tram stops outside the hotel or where it went.
Would I stay at this hotel again? Absolutely !