Overall the hotel was great. Clean, nice room, A/C (very important for Berlin in the summer), within short walking distance to points of interest (e.g., Checkpoint Charlie is less than a block away), and the subway.
The only thing is that I never got a response when I messaged the hotel/host via the Airbnb app. You’ll need to call the hotel directly to get a hold of someone. Otherwise, I’d highly recommend this place!