A nice, cozy place, easy check-in, a very kind host. It has all the amenities one would need for a short, and even a longer stay. Big supermarket just around the corner, a hugh shopping mall is close by.
In regard to the city center, the location of the apartment is not ideal, it takes some time to get there, but you can use the badner bahn, which goes all the way to the Opera.
All in all, a very pleasant experience and everything was as promised :)