We were nervous to stay at the airport but the downtown hotels were outrageously expensive due to an electronics convention in Amsterdam. So we stayed here and loved the hotel.
There are shuttles provided by the hotel 2 times per hour to and from the airport. The train to the Central Station from the airport is easy and relatively fast. We didn't mind it even though we would have liked to be downtown. And the train was pretty cheap.
The staff at the hotel were great. The room was large and the breakfast buffet was among the best we've had at any hotel in Europe.
We will be back in Amsterdam in a few months and will probably stay at this hotel again even if there are options in the downtown at that time.