This apartment was just what we were looking for in our stay in Vienna. We were there for the month of August and while there was no air conditioning, we were never uncomfortable. And that's from someone who's been pretty spoiled in terms of AC throughout my life. The city is easy to navigate and the apartment is in a quiet area with all kinds of cool places easily accessible. The area of Neabau is just a bit to the north west and has a lot of cool shops and cafes. A nearby U line is under construction but there are plenty of convenient alternatives that the host was helpful in pointing out; but we enjoyed walking most places and looking at the architecture. I remember studying the Secession building in a class in college and it's gold dome is beautiful. Our favorite local watering hole was WerkzeugH with a cool outdoor area and a laid back vibe inside with repurposed furniture. Would also recommend a day trip down to Semmering for a nice hike.
The apartment we originally booked was unavailable so the host upgraded us to this even nicer one at no extra cost.