We stayed here in January for a long weekend (wedding anniversary) and had a very pleasant experience. It's the second time we've stayed here and last time we had a room with a canal view but this time we were at the top facing inwards, however the room was bigger. No complaints about decoration, the bed, facilities and the heating was fine, We had to ask for dressing gowns (free) but they were provided straight away. I don't think anyone has mentioned it but the hotel has four PCs available (free) with printers for guests. Very useful for online confirmation of the return flight.
Leidseplein for us is the best area to stay in Amsterdam. It's only a short walk into the old city area in one direction, and very close to the big Art Museums in another. I also like having the entrance to Vondel Park just across the road. If you stay here then you must try eating in the beautiful Art Nouveau restaurant. I would recommend the regular Jazz lunches on Sunday. Two excellent musicians playing live, plus buffet style lunch.
We arrived at the hotel early which wasn't a problem as they have a room for storing luggage. Similarly the day we checked out we were able to keep our luggage in the hotel until the taxi arrived to take us to the airport.
We recommend this hotel and hope to return again.