Communication was super easy and the check in instructions were simple. We chose the option to check in at the welcome center. As we did we got told that the cleaning lady just finished an d we can go to the apartment. It was 4pm, we're arrived there and the cleaning was not finished. The bed was undone, still with old sheets. Hair on the floor. And most of all the cleaning lady was gone. It took us some phone calls and 1 hour later that everything was "cleaned".
We chose this apartment due to its location (10-15' walking distance to the city). The location is good, the apartment also has a parking space inside the building which is nice. The apartment itself is simple which is generally fine to stay maybe 1-2 nights ( we stayed 4 nights). Each person gets 1 towel, 2 towels extra for the hands and 4x mini 'soap/shampoo/bodywash' and 4 rolls of toilet paper. So all in all not sufficient with 4 people spending 4 nights.
My recommendation is that if you need an apartment to crash for one or two nights it's fine. If you're looking for something more cozy, it's not the right place.