First off, Nina is the most loving and caring host. She is always there if you need her to be and will respect your space as well. Lively household, I can recommend her through and through.
It's a must to check fares to central london. Plan ahead and you'll be fine. Avoid the bus towards ealing broadway during peak times. Instead take the bus to Boston Manor and continue from there with tube.
Its a nostalgic area, felt really safe.