My stay at Sebastian's flat was great and I intend to keep coming (if he will have me :) ).
The location is perfect, lively and offering anything one may need (great transport, many shops etc). The road in front of the flat is really busy - which is good, but there is no noise coming in. None. I was pleasantly surprised.
The flat itself is spacious and equipped with everything a household may need. I would say that the photos don't do justice to the pleasant feeling you get when staying there.
I also appreciated the patio since the weather was really good too.
As for Sebastian, I would say that he is a very good host, paying attention to everything so that the stay of his tenants is smooth. He is also very responsive to contacts regarding questions you may have.
Thank you Sebastian, it was a pleasure staying at your place.