PRO: The guest house is a converted 5-room aparment. You enter the building using a PIN code and walk up the stairs to the 3rd floor. Elevator is available though we did not use it. Excellent location within walking distance to places of interest and transportation. Very friendly staff. Good breakfast: you can choose from juice, milk, cereal, sandwitch with bacon & cheese, pastry, fruits, yogurt, tea or cofee. Cofee, tea and mini bar (for additinal fee) are available in the room. Amenities are modern. Good lighting. Pictures of the rooms on the Expedia site are correct. What you see is what you get.
CON: We took the smallest/cheapest room, which appeared to be so small so that there were no table or chairs (there are none shown on the photo). The room feeled crowded with two people in it. We had to eat breakfast from the tray when seating on the bed. The shower was broken: the temperature knob was fixed with only one setting, and the water was too hot, about 60°C. (Staff: please fix it!) Floor tiles may be slippery so be careful after taking a shower. The windows of the smallest room overlook the internal yard unlike the windows of the other rooms, from which you can see the street.
Overall, it was a good 6-day stay. But thinking about staying here, do consider taking a larger room.