Bathroom has a heat radiator on the back of the bath tub, making it a bit uncomfortable to use for 2 people.
Apartment is about 20 minutes ride U2-Bahn to Alexanderplatz, we have expected a better location.
Beds are a bit seperated so you will have to arrange the mattresses a bit if you would like to sleep 2 people together like Double bed.
With all that, we've enjoyed our stay in the place!