Loved my stay at the DT Centraal. No upgrade as a Gold, but found a great room on the OLCI app. Lots of space. I didn't get lounge access, but found the breakfast buffet in the lobby one of the best I have had in Europe. Really great. Location cannot be beat. I walked everywhere. Fun Tip: You can get a nice lunch with a great view at the top floor of the main Library just a few yards to the left of the hotel past the floating Chinese restaurant. Another Tip: The folks behind the desk can sell you 1,2 or 3 day transit passes for same price as the kiosks at the train station, but since you charge them to your room, you earn points.