I was lucky. I had to travel to Berlin on these dates and didn't realize if there was a Berlin Marathon on the same date. All hotels near the train station were fully booked, and miraculously, I got this corner room with a two-window view, including the TV tower. I can see the hotel is one of the historical buildings (saw the picture in the DDR museum 😁), though it was refurbished well. The breakfast area was packed with all the runners, but just enjoy the moment :) I will definitely come back to Park Inn if I have the chance to visit Berlin again.

Pros: clean room, comfortable bed, fast check in, nice receptionist, near Berlin hbf, near bus halte, near tram halte, near you bahn halte, shower with different area so bathroom is still dry, beautiful scenery outside, easy to go to airport with bus, fast free WiFi. Cons: -