We had a great stay. We didn't meet Mina her but the communication went very well and check in and out is easy. Mina's place is on the first floor, it is clean and everything you need is there. The appartement is inside the main old big building on the street site, so not one of the green apartments in the garden you see on the photos. Be aware with the use of the shower, it leaks easily on the wooden floor. The sleeping room is next to the street, at night we wore earplugs and we kept the window closed. Too bad we were there in the warmest period of Summer, but we brought a little fan with us. We know our way well in Berlin so for us it wasn't a problem to go with our bikes (some 15-30 min drive) to our favorite spots in the city, if it is your first time in Berlin it is good to know this.