I stay two nights at Laura’s place while working in London. As a regular AirBnB-er, I can highly recommend it.
A big positive for me was the en-suite bathroom. This is really rare for me, and certainly at the price I paid. In general the room was very private and well-equipped, which i appreciated. I would certainly be keen to stay again.
Laura’s house is a short walk from Whitton station, along the well-equipped High Road. Whitton is in Zone 5 of the transport map, with fairly regular trains which take about 25 minutes to Waterloo.