Perfect location, very close to tons of food and nightlife in Kreuzberg, trains, etc. The woman who was managing the rental was very nice and helpful, accommodated our delayed flight and made herself available to be contacted for a missing bag as well.
A few drawbacks here though: there was also only 1 set of keys for 5 ppl to juggle, so be wary if you have any plans to split up during your travels.
Bathroom situation was also a bit of a mess--ineffective/calcified shower head was pretty funky and only let water trickle out, poor drainage in shower and water spray ends up leaving the bathroom a soggy, damp mess your whole stay. Also, there was no back up toilet paper, paper towels, trash bags, or laundry detergent so you're forced to buy it yourself. Basic necessities should be stocked by the host, as has been our experience everywhere else we've stayed via Airbnb.
Other than that the apartment was clean and pretty empty of any personal possessions.
It certainly did what it needed to do - specially regarding its location.