Holiday Inn Express Amsterdam - Sloterdijk Station

Positiv: It's right next to the train station. I didn't hear any trains at all through the windows. Trains to the airport leave every 15-20 minutes, and Amsterdam Centraal is one stop down as well. It's close enough to the city, but far enough for some quiet time when you want it.

Negativ: The location is a bit outside of the heart of Amsterdam, but that can be good if you're tired of all the sound and lights.