The apartment is clean, stylish, spacious and in a really great location - very close to the Nachtmarkt and Secession as well as really within walking distance of so much of the key sights of Vienna.
My only hesitation is that despite the weather really being normal summer warm - ie early to mid 20s , it was really quite difficult to sleep in the flat as it really holds the heat. As mentioned in other reviews it’s on a main busy road so sleeping with the window open isn’t great - with the noise, and the fans provided were ineffectual and noisy. I really think some proper AC would make this flat perfect but I’d hesitate to rent it in summer again.