We stayed 4 nights in Sofias appartment. We really enjoyed how easy it was to check in and the closeness to everything in the city. She helped with transport information, parking options, what to see and luggage storage option. The appartment is "plug and play", you do not need to bring other than your personal stuff, which is really nice.
If you are a light sleeper you should consider the noise from the traffic and in the room near the stairway you can hear noise from the other neighbours as there is a permanent open window to the yard side.
The living room/kitchen is not very big, but when the weather permits it, you can sit out side and there is lots of space.
Metro, cafées, restaurents and shops very close by.
I can highly recommend Sofias appartment.