It's extremely close to the Seestraße station which can take you Unter den Linden station in roughly 15 minutes. This is great because it's the heart of Berlin's biggest tourist attractions, such as the gate, cathedral, memorial, old churches, Alexander Platz, and multiple museums.
The apartment was extremely clean. If it had a washing machine it would be close enough to perfect for any length of stay.
Flo was a great host. Extremely helpful in solving problems and helping us feel welcome.