The location is perfect if you don't have much time in the city and want easy access to restaurants, cafes, and tourist sites. The bed is comfortable, and the flat is incredibly clean. There is a Nespresso machine and a few pods for guests, as well as an electric kettle. Easy check-in with the key in a lockbox and a code for the door.
My friend from Korea was visiting me in Budapest, and we decided to spend a night in Vienna. We had to request a change to the booking. I received a message that the change was approved, but it turned out it was not processed when we got there. The host was able to give us another room, but the communication was slow and cost us some time in Vienna, which we did not have much of. The host also did not respond after 19 even though we had some questions about the new place. The wifi wasn't available in the new place so we were instructed to connect to a neighboring network. The service was weak and frequently unavailable.
The positive side of the location is that it's easy to get to everything you want to see and do. The negative side of the location is that it was very loud - garage beneath opening and closing frequently, people in the streets drinking and yelling, cars honking, etc. We wanted an easy location so we were okay with the noise.
Overall, we had a nice experience in Vienna but would not book here again.