It is a nice little place. William is great at communicating.
It is a quite neighborhood. The station: westbourne park is very close to the apartment. Use that station if you are traveling from Gatwick. It is a long walk from the recommended station, if you have to carry your bagage.
OBS! be aware of the bed sizes. They are not normal length. I'm 173 cm and I could barely lay in bed in the small bedroom without my feet tipping over the edge. Even my mom who is 165cm though it was a bit short. In the big bedroom the bed might be 10 cm longer, but not much. If you are two adults 180 cm and under traveling with kids, it is a good place.