This is a garden flat, below ground level at the front, on the corner of the busy Holland Road, 5 mins walk from Shepherd's Bush Tube Station on the Central Line. It has a pleasant enclosed courtyard at the back, the main bedroom is comfortable, traffic noise wasn't an issue at night (perhaps because we were tired from all the walking in Central London). Geographical convenience and price are the selling points - this rental is roughly half what you'd pay to sleep 4 adults in 2 hotel rooms in the area. However the 2nd bedroom is small and better suited to kids than adults (which the owner does alert you to).
If you are 6 foot tall, like me, you are going to be bumping into ceiling fixtures, like Gandalf at Bag End. Wifi isn't the greatest, and the place has a comfortable, lived in feel, like crashing at a friend's place. The neighborhood felt reasonably safe during the day and at night.