This is a mostly good news, some bad news review.
First the good.
The location is simply fantastic. Within walking distance of virtually anything we wanted to see, and there are restaurants and shops all over. The flat is VERY clean, nicely decorated and lots of attention to detail for your comfort. There's a wonderful living room with a bay window that looks out over the street. Communication was good, and the pick up location for the key reasonably easy to find.
Now the bad (which admittedly are outside of the control of the the owners)
Noise-it's right on a popular mall and people are out and about all night, sometimes making enough noise that the police are called (our last night). The interior courtyard contains a number of dumpsters for the building and others, as well as some stores and people were in there dumping (and emptying) at all hours....REALLY loud.
The bedrooms are long and very narrow. Just barely enough space for two beds side by side. Makes it very awkward for night loo visits for the person on the inside. The person on the outside has to navigate a narrow passage around the radiators and their valves. I can't imagine how to improve the physics of the room, but it makes for some difficulty.
Lastly, and this really is only for those of us of a certain age, but the flat is three stories up a narrow staircase, and it's a hike...especially with luggage.
All in all thought, the apartment was in a great location and terrific condition. Just bring earplugs and be under 65.