I arrived about 22.30. If it had not been so late I would not have had to endure the 1 night in the worst hotel I have ever been in. From the loose electrical wires hanging from the ceiling to the uncapped pipes this 'hotel' amazed me. At 59euro per night I had hoped for soap to wash with and some kind of curtain to cover the 14"x14" window. Alas I was to be disappointed. The fact that I was at first offered only a 2night refund (I had paid for 4 and used 1) only added insult to injury.
I have stayed in several other Amsterdam hotels and much better value for money can be found.
Some of the moulds growing on the the tiles or on the water-pipes may well be unique. The entrance is in a pub, a pub which turns off its very loud music at 03.30hr.