Very easy to get to from schonefeld airport with a direct bus 171 outside airport to hotel takes about an hour. Hotel very clean and staff helpful, room cleaned daily and clean towels. Breakfast is basic continental: cereals, rolls, cheeses, cold meats etc some hot eggs and bacon/sausage.
U Bahn (underground) station is opposite the hotel and easy to understand
Weekly 7day card costs 28 Euro and allows you to travel as many times a day as you want