Mar place is definitely the place to be for a large group exploring the center of Madrid. Location is definitely the big pro, the apartmenr is in the heart of the old town with many options for drinks, restaurants, tapas bar and clubs. The apartment was very clean and well equipped with everything we needed. Mar was also very nice in accommodating our requests and her tips about Madrid were also very helpful. I would highly recommend this place if you are a large group visting Madrid