The Flat is really amazing! We were 11 people and there was more than enough space for all of us (up to 13 people can sleep comfortably in the beds). There are 3 bathrooms with showers and one additional toilet, which were all very clean and in good condition. In the living room there is a large table, big enough for everyone. The kitchen was quite well equipped and also very clean. The only problem was that the dish washer did not work very well, so that we had to rinse everything again after using it.
Some of the rooms are air conditioned and there are fans in the others.
There also is a small balcony attached to one of the rooms.
I can definitely recommend the flat to groups of friends or families visiting the city.