We stayed at Hotel Clemens for 5 nights. The staff are all very friendly and we loved their two cats Michael and Porcelina. Breakfast is buffet style and there is a good selection. The room was spotless as was the reception and breakfast area. It is in an excellent location, near the Anne Frank House and the general area is very picturesque and you can have some lovely walks nearby along the canals. I would definitely stay here again and recommend it to everybody. The only problem could be somebody elderly as they have very steep stairs.
Fab hotel in a wonderful city.