Claudia met us on arrival, and we hardly saw her after that, however she was always on hand and contactable if there were any problems (not that we had any).
The flat is in a good location with good access to plenty of local restaurants and supermarkets, about 15 minutes walk to Alexanderplatz with a tram stop right out the front should you not want to walk. No real negatives at all, the flat is silent during the night and the bed is brilliant, with a massive bathroom as well. The only things to be aware of is that it’s on the 4th floor of an apartment block, and they have little kids, so don’t expect to sleep past about 9-9.30am, which didn’t prove a problem for us.
Thanks for being a great host!