We had a nice stay in the small secret bookshelf room. It is very small, you can barely open the door, but the bed was comfy and the wallpaper quite interesting. As we spent the whole day exploring Amsterdam it was perfectly sufficient for us. Also enough seating possibilities right in front of the room and the hotel in general. The shared bathroom was good. It could've been a little bit cleaner (hair stuck in the drain,...) and the toilet paper is extremely thin, but nothing much to complain about. Check-in and check-out was super fast. It's very nice that there's a possibility to drop off luggage and pick it up at a later point!! =)