The apartment is easily accessible, close to the metro and the Wien Meindling train station. It is well located (street is quiet), with good access to supermarket and cafes. It can comfortably accommodate four people, if each pair shares a bed; the 2 bedrooms are spacious, well lit, with comfortable beds. Amenities work well, both in the bathroom and in the kitchen, and the place is clean.
The problem was the very strong mouldy, wet wall smell in the kitchen (which also serves as entry room to the apartment), caused by a recent flood. The hosts did not notify this issue prior to our arrival. When I raised the point after check-in, they indicated that it was not possible to alert me at the time of the booking, because the flood happened "just this week." Yet, the host should have written once the flood happened, giving one the option to decide if to stay at this apartment or not. If one of us would have had asthma or allergies, we could have not stayed at the place.