The flat was perfectly clean and confortable. It is very well decorated. Three bathrooms are an asset for large groups !
The location is good and the street is calm but when you pack your luggage, keep in mind that you'll have to climb up some stairs in the street...
The communication with Daniela is really good. She's very nice and understanding.
Think of checking the supplies and equippment with the host if you're staying for a long time (and also who's staying upstairs, just in case).
We were a group of 13 women and were feeling well in this flat. We do recommand it.