I booked through e-bookers two months in advance with a request for a room at the lowest floor - we are of age above 70 and my sister has problems with her knees, she walks with a stick. But for unknown reason my request didn't go through... Maybe it was "lost in translation"... And still, after the frustration of having to climb for the first night to a room on the upper floor, we were pleased that the staff did their absolutely best to solve that problem as soon as they could.
What is good: location - next to metro with two lines. Several nice cafe nearby. Quiet street. Very helpful, nice staff. Small but clean and cosy room
What is not so good: spiral stairs with narrow steps - if you are of age, you should request the lowest floor. No toilets in the room, and to reach a toilet you have to go several steps down the staircase. But the price is reasonable and you can forgive the inconvenience of the stairs for it. Of course, if you are younger than my 73, you will not even notice it. I would recommend this hotel for younger friends.