Trudy's place is very central and near some Berlin Wall monuments/remnants. As a New Yorker, I usually take public transportation wherever I can and it was so easy to get to her apartment from the two airports I used or to get around the city.
I'm a bit of a stickler about bathrooms and this one was sparkling and for a European bathroom, didn't feel tight like I've experienced in the past. The high ceilings and huge windows were also great in making the space feel bigger.
Brandenburg Gate is about a 30mim walk away if I remember correctly, and there are great restaurants, bars, local shops on the way.