Laura is a very considerable and friendly host, who made me feel very welcome at her place! I stayed there for 2 months over the summer, and I can say that the location is perfect. All the major things to see and do in central London are within a 30 min walk and for coffee lovers, there are many amazing coffee places a short walk away.
The only negative thing about the location is that, especially at night, there can be strange (and often drunk) people roaming around. However, although I did feel a little uncomfortable sometimes, I was never approached and on the whole, I felt very safe at Laura's (she has two locks and an iron gate protecting her apartment).