I stayed one month in this studio.
The location is ideal (very close to everything) and there are plenty of bars and bakeries around. Christian has very accomodating and very quick to respond to any question or need that you may have (he conveniently lives downstairs).
For those that work remotely, the internet connection was also good.
My only comment is that the bed was not too comfortable. I gave the feedback to Christian as well and I believe they are working on it.
Overall, great experience. I will certainly choose this place again.