Great location in the center of Berlin. Many attractions are within walking distance. Shopping and restaurants are as well. Heinz is responsive to any question. Management service center is located in the same complex and is open 7 days a week. Check in and out is easy and hassle free. Our flight got delayed so we called the service center and they left the keys to the apartment in a designated box with all instructions. We also had to leave very early morning and only had to drop the keys in a mailbox. The unit has everything you need but one thing to improve is the refrigerator. Kitchen has a mini refrigerator that does not include a freezer so if you are planning to stay few days with family you'd have to make frequent trips to grocery store for basic necessities. Overall it was a great choice, highly recommended.