Stella and Lara's place is fantastic for someone just passing through or planning to spend most of their waking hours exploring Berlin (and honestly, why wouldn't you?). Very easy to get to (8 min walk from the nearest U-Bahn station) with tons of very cool and kitschy bars, cafes, restaurants, and most importantly 3 döner shops (that I could count).
Stella and Lara are very quick to respond with clear instructions. Check-in was as pain-free as could be possible and thier space is not only clean but very stylish.
Lots of talk and plenty of stories about the area being very sketchy and even dangerous. Kreuzberg and especially Görlitzer Park certainly have a reputation that may be well deserved historically speaking, but as a Canadian travelling alone I didn't feel unsafe at all even in the middle of the night. Just keep your wits about you and be observant as all tourists should be when visiting a new city and you'll be fine. The location of Stella and Lara's place had absolutely no effect on my rating, I included this more to explain to anyone considering booking their place to take everything you read about the area with a MASSIVE grain of salt.