This apartment is located just a short subway ride away from the HB. It's a cozy, clean apartment in a green building and comes with a compact kitchen. The host had stocked some granola and pretzels which helped with my midnight hunger pangs. Florian himself is very responsive and easily reachable in case of questions (in my case, i couldn't find the wifi info which was tucked away in a German-text pamphlet. He called and helped me identify it :-))
The neighborhood is a quiet one and doesn't have the hustle bustle that one would see at a more touristy area. A park next door is great for morning strolls. There are some food/coffee/drinks options in the immediate vicinity but I preferred to travel for those.
I had a nice stay here during Christmas holidays and very much recommend this apartment!