The reality is much bigger and better than on the pictures, the U2 line is less than 5 min walk and the location is just great for visiting. Dont' forget to visit Potsdamer Platz and the Sony Center. Martin was so kind, we good arrived as we wanted and he even let us milk, bottles of water, coffee and the, plenty of towels, shower and shampoo gel, soap, a really good free wifi... nothing was missing and the beds are really good. We just had to switch of the fridge during the night because it was too noisy for us, but that's just our point of view. Thank you very much Martin