My spouse and I spent a week at Max's rooftop apartment. I can't say enough good things about our experience. The space is well appointed and smartly decorated. The balcony is a real asset and makes the whole apartment feel light and airy. A lot of attention went into providing us with everything we needed to have a really agreeable stay. Our hosts (Max and Robert) made several useful suggestions about what to see and do in Vienna, particularly during these hot summer days. The location is quiet and conveniently located near the U4 line Pilgramgasse station. It is also a short walk to the Naschmarkt where we went for dinner a couple of times. We highly recommend this Airbnb offer.