I just finished a long stay here and am happy to leave the five stars, since the ad very fairly represents the apartment. You'll get a very functional apartment with everything you need, renovated and in some cases with very nice stuff in it, and a big window. If you've booked here I'd be confident in saying you don't have to worry. One thing I mentioned to Janosh that I really appreciated was the two fans, a lifesaver in the summer but very seldom found in airbnbs in my experience. But I'd say I never loved staying here. Functional is the key word but stylish or cozy/warm I wouldn't say really, for example there's lots of bright lighting but if you want to have a friend over for dinner it's either super bright light or no light.
It's a very central Schöneberg location which I'm also not sure I loved, though many other people definitely would. Janosh replies almost immediately by whatsapp and takes good care of the apartment. One thing I was unhappy about was that on arrival there was a problem with the hot water - I had only lukewarm water in the shower and kitchen sink and cold water only in the bathroom sink. I let him know within 15 minutes of arriving. But his handyman was travelling and he was unwilling to have someone else look at it so it wasn't fixed for just over 3 weeks. Of course it wasn't a crisis, and I decided not to make a fuss, but I still find that really poor, especially for something not working before I even arrived, and I wanted to mention it in the review. You can decide for yourself whether you think that's a big deal or not.