Our time at Petra's was wonderful. She is one of the most accommodating person I have ever met. We arrived very early in the day and she welcomed us happily with maps, a flat tour, and personal recommendations.
She made the stay very pleasant and inviting.
The beds were very comfortable and the flat was beautiful and clean.
The flat is right next to both the underground and the overground so it is very easy to go to the center of town.
If you can, I would recommend staying here. It was a wonderful experience.