The apartment is not far away from Vienna Haubtbahnhof. Handy if you have to catch an early train or arrive late. The neighborhood is good and there are tram and subway stops nearby. Also a big Spar Supermarket. The appartement is large enough for two people. Certainly if you will spend most time out exploring the city. During our stay it was very warm weather. Sleeping at the sleeping department, which is a bit higher and warmer than the rest of the apartment, was quite challenging. But this might be no problem with more moderate temperatures outside.
Communication and check-in and check-out were perfect and smooth.
So a good apartment for a reasonable price!