Rita is welcoming, and she is very very nice. Without a second thought she helped me when my schedule changed and I had to stay one more day than planned. However, we didn't have time to chat a lot as I was very busy and pretty much in-and-out every day.

The location is perfect. I believe it's hard to find such a nice place in a quiet neighbourhood in Berlin. It's close to S-bahn and U-bahn and at a walkable distance (10-15 min) from Potsdamer Platz. There is also a grocery store (Lidl) 5 minutes away, which is pretty useful.

The place itself was OK. The apartment is beautiful - high ceilings, a big "common" room that feels like an old ballet studio and large double doors. The bedroom is small but practical for one person, and it has a very nice large window to the inner-court of the complex. On the other hand, the rest of the apartment was not super clean and organized. Unfortunately I couldn't raise these concerns with Rita as I was pretty much always away and staying for only a couple of days. What troubled me was the shower not working (seemingly because the shower head couldn't be fixed high enough), and the kitchen was not clean at all, with not enough space to cook/eat a proper meal on the dining table.

In any case, I strongly recommend this host for a short trip. Furthermore, Rita is a nice enough person that I am sure she would adapt and fix issues at your requests.