Wow what a fantastic apartment and location. We didn't meet Stephanie in person but was met by her very capable assistant Tina who made us feel very welcome and was happy to answer all our questions.
Our luggage was lost and we had none of the essentials, unbelievably, Stephanie had provided everything we needed in the apartment to keep us going for the next few days.
We loved the area, it had a lovely atmosphere with bars and restaurants and easy access to transport. (Tip - take a walk down Auguststrasse to find some really cool shops and bars)
The apartment was stylishly furnished and, most importantly for us (and any traveller) the bed was amazingly comfortable.
We would have no hesitation in booking this apartment if we return to Berlin and would highly recommend this to anyone.