The communication with Birgit was great and she helped us with all the needed information before we got to the apartments (how to get from the airport...). The lady who checked us in didn't speak English but we managed to communicate enough to understand what we need.
The location was good for our needs, just near the U station and 10 minutes walk to the messe.
The weather was pretty hot in our first day and since there is no AC we had to open the windows so we had a loud noises from the main street beneath the apartment.
the apartment is on the first floor, but there is also an elevator, so the access is very comfortable.
There are many grocery stores around, and the kitchen is equipped with the basic things for cooking.
The only downside we had is that we didn't understood the layout of the apartment well enough - the first bed is in the dining room, after crossing through this room you get to the living room with the soffa bed, and crossing through this room you get to the bedroom with double bed - it can work fine for family or good friends, not as much if you need a bit of privacy.
Overall we enjoyed our stay very much.
Thank you Birgit for nice hosting.