Greet's house presents an interesting contemporary modification of a narrow old house with 4 levels, hence many stairs to navigate. If one is not so young and agile, it may be a little exhausting and inconvenient, especially with luggage. We just left ours on the first floor instead to taking them all the way to the bedroom on the 3rd floor.
Even though the floor space is limited, the whole house feels spacious and airy, partially from the strategically placed glass floor segments, which could induce vertigo looking down from the one in the bedroom - so we just placed a sheepskin rug over it!
The whole place was clean, everything worked well and we did not lack for anything, so all in all a very satisfactory 3 day stay!