Our stay at Petra's place was absolutely wonderful! She is a very sweet and caring host. She got in touch with us early on, gave us very clear instructions about how to get to her place, she provided a list of suggestions with places to visit/restaurants/shops/etc, and even provided little snacks in our room! The room itself is very spacious, well decorated and VERY clean. Petra also cooked breakfast for us, with many options and a variety of foods, along with delicious scrambled eggs. Overall, it was a very pleasant stay and I highly recommend it to anyone visiting Berlin!