Sonja's apartment is well-located in a popular district of Vienna, within reasonable walking distance of the city's main sights and close to some good local shops and restaurants. It is on a busy road but, being on the 4th floor, is not noisy. During our visit in June, temperatures were high and the flat is without air-conditioning, so anyone who is sensitive to the heat should be aware of this (there is a ceiling fan but this does not provide much relieve when temperatures are 30C+). For anyone driving a car, parking can be an issue in this central area of the city but public transport in Vienna is good. Sonja was an attentive host who made access reasonably easy and it was easy to communicate with her over check-in and -out; whilst some of the lights were not working, she made sure to provide alternatives for our stay if needed. Everything was clean except the common parts on the ground floor of this older building where some refurbishment was being carried out; stairs to the elevator were quite dirty. Furnishings and amenities in the flat are very basic, just sufficient for 2 people; the space is bright and sunny but small; the decor is eclectic and some parts/items of furniture could do with updating. Happy to recommend for a short city stay for a couple!