Based on my experience, expect to be disappointed by the immediate neighborhood, not because it is "gritty" but because it lacks energy. Find a place near Kittbuser Tor where things are far more exciting. This unit may be "near" Bergmann, but it is not a convenient walk to Bergmann before/after a long day seeing Berlin as you will have to walk past a very convenient U-7 stop and then retrace your steps. Also, you should confirm that the very nearby construction activity has been completed. The construction crew arrives at 6; work begins at 7.