My mom and I stayed at Nina's apartment for three nights and our experience was absolutely great! We loved everything about the place and, although we did not get the chance to meet Nina in person, communication was great and she stayed in touch with during the entire duration of our stay to make sure everything was all right.
The place itself is ideal, sunny, spacious, with a nice private terrace and a great living room. The beds were really comfortable and the shower worked perfectly. What I loved the most was how clean, tidy and cozy the apartment was. The location was also great and we loved the area.
Nina left us some welcome gifts in the kitchen and she also arranged for a friend to meet us and let us into the apartment upon our arrival.
If I come back to London I would definitely consider staying at Nina's again as both my mom and I really enjoyed our time there.