It is a lovely, full of light and comfortable flat, located in a beautiful and peaceful street but in a close proximity to public transportation, as well as shops. It was easy to communicate with B, who left clear instructions about the location and check in.
The flat is pleasant to stay in and is nicely designed. It is well equipped with everything you need for short holiday.
In terms of cleanness, it was generally ok. The bedroom's carpet was stained pretty heavily throughout. It was an unpleasant surprise.
B was very kind to allow me late checkout which was a great help. I do recommend staying in B's flat.