Very cool accomodation! The studio was impeccable and the courtyard was very beautiful. We did not get to use it since we only stayed for 2 nights but it was very nice to walk through coming in or out. It is very easy to walk to a lot of different restaurants and bars which was also great. Public transport was a little farther but not an issue at all. We did not get to meet Carmen but she was very responsive to our messages and we were able to store our luggage past checkout in order to explore a bit more on our last day. I highly recommend Carmen's place if you are looking for a unique experience in Berlin.