The location is excellent and you get a chance to see how locals live. Very well connected to the city's attractions. Also, a lot of cafes, markets and restaurants nearby. The flat is cosy, well decorated and well equipped. Unfortunately is a ground floor and not much natural light comes in, as the buildings around block it, but it's not like it's totally dark. Sofia is super nice and will tell you tips about the city. Also there is a board with useful info like maps, metro lines info, and all amenities around. We had a great time!