We stayed there five nights ago. We chose that neighborhood because it's near the airport and we…read morehad an early flight the next morning. The hotel is right by an U-Bahn station and within a short walk of an S-Bahn station, so I'd actually consider staying there for future visits to Berlin (i.e., not only when taking an early flight) because the cost is certainly more reasonable than in central Berlin.
I'd requested a top floor/quiet room and we had no problems with noise. The rooms have a/c (not a standard option in Germany), although we didn't need to use it. The room was spotless, and the shower stall was a more reasonable size than the minuscule ones we'd encountered at several previous hotels.
The front desk staff were all pleasant and efficient. There's also free coffee and gelato on the first floor. The (free) buffet breakfast was *terrific*; it was very extensive and everything tasted great (there was also a lot of meat, which we don't eat).
The only reason why I'm giving three stars instead of four is because of the HORRENDOUS WiFi. Not only was it *incredibly* slow and not only did it cut us off frequently, but we had to stand by the door of our room for a lengthy period each time we got cut off (in order to get back online).