Basically, everything was fine. The check-in went without a hitch, the apartment was in a great location. The only thing that bothered us was that there was no shower bar to which the shower could be attached. Therefore the shower must be held permanently in the hand.
It would also have been nice if you could have left your luggage somewhere after the checkout. But this is not a real point of criticism.
We didn't get to know Karen, the keys were handed over by her assistant. She gave us some nice tips for our stay.